UK area code
01453 area code — Dursley
The 01453 dialling code covers Dursley in Gloucestershire. Below are the currently-allocated Ofcom number ranges and the Range Holders they are assigned to.
About the 01453 dialling code
01453 is the UK area code for Dursley and the surrounding Gloucestershire area, listed in Ofcom’s National Telephone Numbering Plan. When a UK landline calls you and the number begins +44 1453 the originating exchange is most likely physically located in or near Dursley. Numbers in this code are allocated to UK communications providers in 1,000- or 10,000-number blocks; the table below shows which Range Holder Ofcom assigned each block to.
This is the same data Ofcom publishes every Wednesday in the public UK Numbering Data feed. We re-ingest the snapshot weekly, so the allocations you see here are at most seven days old. Because UK numbers are portable, the current carrier of any specific number on 01453 can differ from the Range Holder shown — see Range Holder vs current provider for the full explanation.
To identify a specific 01453 number, paste it into the lookup form above. You will see the Range Holder, the allocation status, the area-code metadata for Dursley, and a live AI internet check summarising any public web reports about that exact number — useful when an unfamiliar 01453 caller turns out to be a legitimate local business, a national contact-centre, or a scam.
The 01453 code uses standard UK landline call charging: from a UK landline or mobile, the call is billed at the rate set by the caller’s own provider, with most consumer tariffs bundling UK-to-UK landline minutes into a monthly inclusive allowance. It is a geographic number under the Ofcom numbering plan, which means the recipient pays nothing to receive the call, and the caller pays a normal landline rate regardless of where in the UK they are dialling from. International callers should drop the leading zero and dial +44 1453 followed by the local number.
01453 numbers can be reached as a UK consumer landline, used by a small business operating from Dursley, allocated to a national contact-centre that wants a Dursley-presenting CLI, or provisioned to a VoIP service whose subscriber lives anywhere in the UK. Because the same code can fan out to such different real-world callers, the dialling code on its own is rarely enough to identify who is calling. The combination of (a) the Ofcom Range Holder for the specific block, (b) the public web reputation surfaced by the AI internet check, and (c) the call’s context (time of day, whether you were expecting a call, what they ask for) is what actually answers who called me from 01453?
01453 by the numbers
The 01453 dialling code currently has 876 allocated number ranges on file across 94 distinct Ofcom Range Holders. The largest holder by allocated block count is BT with 38 ranges, followed by GCI Network Solutions Limited (22) and TalkTalk Communications Limited (12). Numbers in this area are predominantly recorded as Protected (61% of the visible blocks), with Allocated accounting for a further 31%. The allocated prefixes on 01453 run from +44 14530 through +44 145399, which Ofcom carves into 10 distinct block roots in the table below.
Of those visible blocks, 31% are in active Allocated status; the rest are a mix of Designated (earmarked for a specific use but not yet released), Reserved (held back from the general pool), Quarantined (recently freed and not yet eligible for re-issue), and Free (available for re-allocation). The mix matters when you’re trying to identify a caller: a number sitting inside an Allocated 01453 block is in active service with a UK customer, whereas a number claimed to be from a Designated or Reserved block almost certainly isn’t the genuine origin and points instead at a spoofed CLI worth treating with caution.
By number family, the visible 01453 blocks are mostly geographic (01 / 02) (100%) — a useful sanity check, because a geographic code should be dominated by geographic ranges, and any large non-geographic share would be a sign the block boundaries are worth a closer look.
Best practice when a 01453 call comes in
- Cross-reference the digits against the Range Holder column below — a call presenting a 01453 CLI that doesn’t reconcile to one of the UK-licensed providers listed is the first amber flag.
- Treat the prefix as one signal, not the whole story. UK numbers are portable, and any geographic code can be CLI-spoofed through an offshore VoIP gateway, so the 01453 root only narrows the field of likely callers.
- Paste the exact digits into the lookup form above for a live AI internet check — if a 01453 number has been logged on consumer scam-reporting forums, that surfaces alongside the Range Holder record.
- If a 01453 caller pressures you for payment details, account credentials or remote-access permission, hang up. Find the official number on the organisation’s website or a recent statement and ring back yourself rather than trusting the incoming CLI.
01453 history and number format
Number format: Numbers on 01453 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01453 234 567.
Before 1995: 01453 took its current form at PhONEday on 16 April 1995, when a "1" was inserted into every UK geographic code — before that the area dialled 0453.
Allocation record: the oldest number block still visible on 01453 was allocated on 15 July 1994, and the most recent on 26 January 2026. 2 blocks were allocated in the last 12 months — newly-activated ranges with no call history, which is worth knowing when an unfamiliar 01453 number rings (see the weekly numbering changelog for every new allocation.)
Range holders on 01453
- BT38 ranges
- GCI Network Solutions Limited22 ranges
- TalkTalk Communications Limited12 ranges
- Vodafone Ltd (C&W)6 ranges
- Colt Technology Services6 ranges
- Six Degrees Technology Group Limited6 ranges
- Digital Space Group Limited4 ranges
- Lumen Technologies UK Limited4 ranges
Complete range holder register for 01453
Every Ofcom-listed Range Holder with an allocation under 01453, with the number of blocks held and the span of allocation dates on record. Source: Ofcom UK Numbering Data, re-ingested weekly.
| Range holder | Blocks | Allocated | First allocation | Most recent |
|---|---|---|---|---|
| BT | 38 | 38 | 15 July 1994 | 18 September 2023 |
| GCI Network Solutions Limited | 22 | 22 | 25 April 2017 | 26 February 2024 |
| TalkTalk Communications Limited | 12 | 12 | 19 January 2012 | 22 March 2019 |
| Colt Technology Services | 6 | 6 | 30 January 2013 | 23 May 2013 |
| Six Degrees Technology Group Limited | 6 | 6 | 14 January 2020 | 14 January 2020 |
| Vodafone Ltd (C&W) | 6 | 6 | 4 September 2013 | 10 November 2021 |
| Digital Space Group Limited | 4 | 4 | 30 November 2007 | 15 March 2016 |
| Fuse 2 Communications Ltd | 4 | 4 | 3 July 2017 | 22 January 2024 |
| Gamma Telecom Holdings Limited | 4 | 4 | 4 March 2005 | 22 September 2021 |
| Lumen Technologies UK Limited | 4 | 4 | 26 May 2006 | 26 May 2006 |
| (AQ) LIMITED | 2 | 2 | 11 September 2012 | 11 September 2012 |
| 24 Seven Cloud Communications Ltd | 2 | 2 | 17 January 2020 | 17 January 2020 |
| API Telecom Limited | 2 | 2 | 30 March 2012 | 30 March 2012 |
| AQL Wholesale Ltd | 2 | 2 | 23 June 2006 | 23 June 2006 |
| Adepteo Limited | 2 | 2 | 13 December 2016 | 13 December 2016 |
| Andrews & Arnold (Numbers) Ltd | 2 | 2 | 6 March 2009 | 6 March 2009 |
| Atomstream Limited | 2 | 2 | 22 March 2010 | 22 March 2010 |
| Barritel Limited | 2 | 2 | 9 June 2006 | 9 June 2006 |
| Belgacom International Carrier Services SA | 2 | 2 | 21 October 2020 | 21 October 2020 |
| Bicom Systems EURL | 2 | 2 | 2 March 2012 | 2 March 2012 |
| Bink Networks Ltd | 2 | 2 | 29 March 2023 | 29 March 2023 |
| Buzz Networks Limited | 2 | 2 | 4 March 2010 | 4 March 2010 |
| CFL Communications Ltd | 2 | 2 | 9 July 2009 | 9 July 2009 |
| Calltracks Limited | 2 | 2 | 20 September 2013 | 20 September 2013 |
| Content Guru Limited | 2 | 2 | 15 October 2012 | 15 October 2012 |
| DIDWW Ireland Limited | 2 | 2 | 27 January 2020 | 27 January 2020 |
| DRD Communications Limited | 2 | 2 | 5 October 2023 | 5 October 2023 |
| Datazero Ltd | 2 | 2 | 2 December 2010 | 2 December 2010 |
| Dial 9 Communications Limited | 2 | 2 | 13 January 2020 | 13 January 2020 |
| Digitech Solutions Global Limited | 2 | 2 | 28 April 2010 | 28 April 2010 |
| EVE CONNECT LTD | 2 | 2 | 15 June 2022 | 15 June 2022 |
| Flextel Limited | 2 | 2 | 24 October 2005 | 24 October 2005 |
| Hello Telecom (UK) Limited | 2 | 2 | 10 November 2011 | 10 November 2011 |
| I.T Communications Limited | 2 | 2 | 25 April 2017 | 25 April 2017 |
| ICC Networks Ltd | 2 | 2 | 16 April 2012 | 16 April 2012 |
| ICUK Computing Services Limited | 2 | 2 | 17 June 2020 | 17 June 2020 |
| INTELLIGENT EXCHANGES LIMITED | 2 | 2 | 26 January 2026 | 26 January 2026 |
| IOVOX Limited | 2 | 2 | 3 July 2012 | 3 July 2012 |
| IP Voice Networks Ltd | 2 | 2 | 20 September 2017 | 20 September 2017 |
| IPV6 Limited | 2 | 2 | 5 February 2009 | 5 February 2009 |
| Inet Telecoms Ltd (Voipfone) | 2 | 2 | 30 November 2009 | 30 November 2009 |
| Internexus Networks Limited | 2 | 2 | 21 November 2011 | 21 November 2011 |
| Invade International Ltd | 2 | 2 | 12 January 2016 | 12 January 2016 |
| Invoco Ltd | 2 | 2 | 6 May 2014 | 6 May 2014 |
| Invosys Limited | 2 | 2 | 14 February 2012 | 14 February 2012 |
| KCOM Group Ltd | 2 | 2 | 8 September 2022 | 8 September 2022 |
| Kalnet4U Ltd | 2 | 2 | 13 December 2013 | 13 December 2013 |
| Linear Telecoms Limited | 2 | 2 | 12 October 2010 | 12 October 2010 |
| Localphone Limited | 2 | 2 | 4 May 2007 | 4 May 2007 |
| M247 Ltd | 2 | 2 | 29 May 2015 | 29 May 2015 |
| Magrathea Telecommunications Limited | 2 | 2 | 24 September 2004 | 24 September 2004 |
| Mars Communications Limited | 2 | 2 | 12 February 2009 | 12 February 2009 |
| Media Hawk Ltd | 2 | 2 | 11 April 2013 | 11 April 2013 |
| Mi Telecom Limited | 2 | 2 | 3 July 2020 | 3 July 2020 |
| Minotaur Telecom Limited | 2 | 2 | 1 February 2013 | 1 February 2013 |
| Nationwide Telephone Assistance Ltd | 2 | 2 | 1 October 2007 | 1 October 2007 |
| Net-Work Internet Ltd | 2 | 2 | 12 December 2007 | 12 December 2007 |
| Nexbridge Communications Limited | 2 | 2 | 7 March 2012 | 7 March 2012 |
| Nexus Telecommunications Limited | 2 | 2 | 28 September 2009 | 28 September 2009 |
| Nodemax Limited | 2 | 2 | 14 July 2008 | 14 July 2008 |
| Number Services Ltd. | 2 | 2 | 22 November 2018 | 22 November 2018 |
| Nuso Cloud UK Limited | 2 | 2 | 21 June 2013 | 21 June 2013 |
| Orbtalk Limited | 2 | 2 | 30 November 2011 | 30 November 2011 |
| Phone Co-Op Numbering Limited | 2 | 2 | 22 December 2010 | 22 December 2010 |
| Redcentric Solutions Limited | 2 | 2 | 5 June 2015 | 5 June 2015 |
| Redwood Technologies Ltd | 2 | 2 | 15 November 2018 | 15 November 2018 |
| Served Up Limited | 2 | 2 | 23 May 2008 | 23 May 2008 |
| SiPalto Ltd | 2 | 2 | 17 June 2020 | 17 June 2020 |
| Simwood eSMS Limited | 2 | 2 | 13 August 2010 | 13 August 2010 |
| Sky UK Limited | 2 | 2 | 2 July 2013 | 2 July 2013 |
| Solutios Limited | 2 | 2 | 14 October 2008 | 14 October 2008 |
| Spitfire Network Services Limited | 2 | 2 | 10 November 2011 | 10 November 2011 |
| Suretec Systems Ltd | 2 | 2 | 6 May 2010 | 6 May 2010 |
| Sysconfig Ltd | 2 | 2 | 17 February 2022 | 17 February 2022 |
| TGL Services (UK) Ltd | 2 | 2 | 2 February 2015 | 2 February 2015 |
| TTNC Limited | 2 | 2 | 14 November 2013 | 14 November 2013 |
| TelNG Limited | 2 | 2 | 27 February 2007 | 27 February 2007 |
| Telappliant Limited | 2 | 2 | 1 June 2010 | 1 June 2010 |
| Telecom2 Limited | 2 | 2 | 11 September 2009 | 11 September 2009 |
| Telecoms World Limited | 2 | 2 | 19 March 2009 | 19 March 2009 |
| Telephone Box Limited | 2 | 2 | 26 November 2010 | 26 November 2010 |
| VOXYONDER NETWORK SERVICES UK LTD | 2 | 2 | 10 September 2020 | 10 September 2020 |
| Vectone Mobile Limited | 2 | 2 | 29 June 2009 | 29 June 2009 |
| Verizon UK Limited | 2 | 2 | 5 August 2009 | 5 August 2009 |
| Virgin Media Limited | 2 | 2 | 3 March 2017 | 3 March 2017 |
| VoIP-Un Limited | 2 | 2 | 29 October 2007 | 29 October 2007 |
| VoiceHost Limited | 2 | 2 | 27 September 2010 | 27 September 2010 |
| Voiceflex Limited | 2 | 2 | 27 September 2007 | 27 September 2007 |
| Voxbone SA | 2 | 2 | 19 September 2008 | 19 September 2008 |
| Windsor Telecom Limited | 2 | 2 | 21 July 2010 | 21 July 2010 |
| XoverX Ltd | 2 | 2 | 1 May 2013 | 1 May 2013 |
| YayYay Limited | 2 | 2 | 23 April 2015 | 23 April 2015 |
| Zapappi Ltd | 2 | 2 | 5 January 2018 | 5 January 2018 |
| Ziron Limited | 2 | 2 | 30 July 2012 | 30 July 2012 |
When each provider arrived on 01453
The year each Range Holder took its first block on this code. A provider appearing recently means newly-activated numbers with no call history, which is worth knowing when an unfamiliar 01453 number rings.
- 1994
- BT
- 2004
- Magrathea Telecommunications Limited
- 2005
- Flextel Limited, Gamma Telecom Holdings Limited
- 2006
- AQL Wholesale Ltd, Barritel Limited, Lumen Technologies UK Limited
- 2007
- Digital Space Group Limited, Localphone Limited, Nationwide Telephone Assistance Ltd, Net-Work Internet Ltd, TelNG Limited, VoIP-Un Limited, Voiceflex Limited
- 2008
- Nodemax Limited, Served Up Limited, Solutios Limited, Voxbone SA
- 2009
- Andrews & Arnold (Numbers) Ltd, CFL Communications Ltd, IPV6 Limited, Inet Telecoms Ltd (Voipfone), Mars Communications Limited, Nexus Telecommunications Limited, Telecom2 Limited, Telecoms World Limited, Vectone Mobile Limited, Verizon UK Limited
- 2010
- Atomstream Limited, Buzz Networks Limited, Datazero Ltd, Digitech Solutions Global Limited, Linear Telecoms Limited, Phone Co-Op Numbering Limited, Simwood eSMS Limited, Suretec Systems Ltd, Telappliant Limited, Telephone Box Limited, VoiceHost Limited, Windsor Telecom Limited
- 2011
- Hello Telecom (UK) Limited, Internexus Networks Limited, Orbtalk Limited, Spitfire Network Services Limited
- 2012
- (AQ) LIMITED, API Telecom Limited, Bicom Systems EURL, Content Guru Limited, ICC Networks Ltd, IOVOX Limited, Invosys Limited, Nexbridge Communications Limited, TalkTalk Communications Limited, Ziron Limited
- 2013
- Calltracks Limited, Colt Technology Services, Kalnet4U Ltd, Media Hawk Ltd, Minotaur Telecom Limited, Nuso Cloud UK Limited, Sky UK Limited, TTNC Limited, Vodafone Ltd (C&W), XoverX Ltd
- 2014
- Invoco Ltd
- 2015
- M247 Ltd, Redcentric Solutions Limited, TGL Services (UK) Ltd, YayYay Limited
- 2016
- Adepteo Limited, Invade International Ltd
- 2017
- Fuse 2 Communications Ltd, GCI Network Solutions Limited, I.T Communications Limited, IP Voice Networks Ltd, Virgin Media Limited
- 2018
- Number Services Ltd., Redwood Technologies Ltd, Zapappi Ltd
- 2020
- 24 Seven Cloud Communications Ltd, Belgacom International Carrier Services SA, DIDWW Ireland Limited, Dial 9 Communications Limited, ICUK Computing Services Limited, Mi Telecom Limited, SiPalto Ltd, Six Degrees Technology Group Limited, VOXYONDER NETWORK SERVICES UK LTD
- 2022
- EVE CONNECT LTD, KCOM Group Ltd, Sysconfig Ltd
- 2023
- Bink Networks Ltd, DRD Communications Limited
- 2026
- INTELLIGENT EXCHANGES LIMITED
Providers in the recent 01453 change feed
INTELLIGENT EXCHANGES LIMITED (allocated).
Other Gloucestershire dialling codes
All allocated ranges on 01453
Showing all 876 ranges, ordered by prefix.
| Prefix | Status | Range holder |
|---|---|---|
| +44 14530 | Protected | — |
| +44 145300 | Protected | — |
| +44 145300 | Protected | — |
| +44 145301 | Protected | — |
| +44 145301 | Protected | — |
| +44 145302 | Protected | — |
| +44 145302 | Protected | — |
| +44 145303 | Protected | — |
| +44 145303 | Protected | — |
| +44 145304 | Protected | — |
| +44 145304 | Protected | — |
| +44 145305 | Protected | — |
| +44 145305 | Protected | — |
| +44 145306 | Protected | — |
| +44 145306 | Protected | — |
| +44 145307 | Protected | — |
| +44 145307 | Protected | — |
| +44 145308 | Protected | — |
| +44 145308 | Protected | — |
| +44 145309 | Protected | — |
| +44 145309 | Protected | — |
| +44 14531 | Free | — |
| +44 145310 | Protected | — |
| +44 145310 | Protected | — |
| +44 145311 | Protected | — |
| +44 145311 | Protected | — |
| +44 145312 | Protected | — |
| +44 145312 | Protected | — |
| +44 145313 | Protected | — |
| +44 145313 | Protected | — |
| +44 145314 | Protected | — |
| +44 145314 | Protected | — |
| +44 145315 | Protected | — |
| +44 145315 | Protected | — |
| +44 145316 | Protected | — |
| +44 145316 | Protected | — |
| +44 145317 | Protected | — |
| +44 145317 | Protected | — |
| +44 145318 | Protected | — |
| +44 145318 | Protected | — |
| +44 145319 | Protected | — |
| +44 145319 | Protected | — |
| +44 14532 | Free | — |
| +44 1453200 | Protected | — |
| +44 1453200 | Protected | — |
| +44 1453201 | Protected | — |
| +44 1453201 | Protected | — |
| +44 1453202 | Protected | — |
| +44 1453202 | Protected | — |
| +44 1453203 | Protected | — |
| +44 1453203 | Protected | — |
| +44 1453204 | Protected | — |
| +44 1453204 | Protected | — |
| +44 1453205 | Protected | — |
| +44 1453205 | Protected | — |
| +44 1453206 | Protected | — |
| +44 1453206 | Protected | — |
| +44 1453207 | Protected | — |
| +44 1453207 | Protected | — |
| +44 1453208 | Protected | — |
| +44 1453208 | Protected | — |
| +44 1453209 | Protected | — |
| +44 1453209 | Protected | — |
| +44 145321 | Allocated | TelNG Limited |
| +44 145321 | Allocated | TelNG Limited |
| +44 145322 | Allocated | GCI Network Solutions Limited |
| +44 145322 | Allocated | GCI Network Solutions Limited |
| +44 145323 | Allocated | Localphone Limited |
| +44 145323 | Allocated | Localphone Limited |
| +44 145324 | Allocated | Voiceflex Limited |
| +44 145324 | Allocated | Voiceflex Limited |
| +44 145325 | Protected | — |
| +44 145325 | Protected | — |
| +44 145326 | Protected | — |
| +44 145326 | Protected | — |
| +44 145327 | Allocated | TTNC Limited |
| +44 145327 | Allocated | TTNC Limited |
| +44 145328 | Allocated | Nationwide Telephone Assistance Ltd |
| +44 145328 | Allocated | Nationwide Telephone Assistance Ltd |
| +44 1453290 | Protected | — |
| +44 1453290 | Protected | — |
| +44 1453291 | Protected | — |
| +44 1453291 | Protected | — |
| +44 1453292 | Protected | — |
| +44 1453292 | Protected | — |
| +44 1453293 | Protected | — |
| +44 1453293 | Protected | — |
| +44 1453294 | Protected | — |
| +44 1453294 | Protected | — |
| +44 1453295 | Protected | — |
| +44 1453295 | Protected | — |
| +44 1453296 | Protected | — |
| +44 1453296 | Protected | — |
| +44 1453297 | Allocated | TalkTalk Communications Limited |
| +44 1453297 | Allocated | TalkTalk Communications Limited |
| +44 1453298 | Allocated | TalkTalk Communications Limited |
| +44 1453298 | Allocated | TalkTalk Communications Limited |
| +44 1453299 | Allocated | TalkTalk Communications Limited |
| +44 1453299 | Allocated | TalkTalk Communications Limited |
| +44 14533 | Free | — |
| +44 145330 | Allocated | (AQ) LIMITED |
| +44 145330 | Allocated | (AQ) LIMITED |
| +44 145331 | Allocated | VoIP-Un Limited |
| +44 145331 | Allocated | VoIP-Un Limited |
| +44 145332 | Allocated | Digital Space Group Limited |
| +44 145332 | Allocated | Digital Space Group Limited |
| +44 145333 | Allocated | Net-Work Internet Ltd |
| +44 145333 | Allocated | Net-Work Internet Ltd |
| +44 1453340 | Protected | — |
| +44 1453340 | Protected | — |
| +44 1453341 | Protected | — |
| +44 1453341 | Protected | — |
| +44 1453342 | Protected | — |
| +44 1453342 | Protected | — |
| +44 1453343 | Protected | — |
| +44 1453343 | Protected | — |
| +44 1453344 | Protected | — |
| +44 1453344 | Protected | — |
| +44 1453345 | Protected | — |
| +44 1453345 | Protected | — |
| +44 1453346 | Protected | — |
| +44 1453346 | Protected | — |
| +44 1453347 | Allocated | Digital Space Group Limited |
| +44 1453347 | Allocated | Digital Space Group Limited |
| +44 1453348 | Protected | — |
| +44 1453348 | Protected | — |
| +44 1453349 | Protected | — |
| +44 1453349 | Protected | — |
| +44 1453350 | Allocated | TalkTalk Communications Limited |
| +44 1453350 | Allocated | TalkTalk Communications Limited |
| +44 1453351 | Allocated | IPV6 Limited |
| +44 1453351 | Allocated | IPV6 Limited |
| +44 1453352 | Allocated | Solutios Limited |
| +44 1453352 | Allocated | Solutios Limited |
| +44 1453353 | Allocated | Nodemax Limited |
| +44 1453353 | Allocated | Nodemax Limited |
| +44 1453354 | Allocated | Mars Communications Limited |
| +44 1453354 | Allocated | Mars Communications Limited |
| +44 1453355 | Protected | — |
| +44 1453355 | Protected | — |
| +44 1453356 | Allocated | Telecom2 Limited |
| +44 1453356 | Allocated | Telecom2 Limited |
| +44 1453357 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 1453357 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 1453358 | Allocated | Voxbone SA |
| +44 1453358 | Allocated | Voxbone SA |
| +44 1453359 | Allocated | Telecoms World Limited |
| +44 1453359 | Allocated | Telecoms World Limited |
| +44 1453360 | Allocated | Invade International Ltd |
| +44 1453360 | Allocated | Invade International Ltd |
| +44 1453361 | Allocated | Verizon UK Limited |
| +44 1453361 | Allocated | Verizon UK Limited |
| +44 1453362 | Allocated | Vectone Mobile Limited |
| +44 1453362 | Allocated | Vectone Mobile Limited |
| +44 1453363 | Allocated | CFL Communications Ltd |
| +44 1453363 | Allocated | CFL Communications Ltd |
| +44 1453364 | Protected | — |
| +44 1453364 | Protected | — |
| +44 1453365 | Allocated | Nexus Telecommunications Limited |
| +44 1453365 | Allocated | Nexus Telecommunications Limited |
| +44 1453366 | Protected | — |
| +44 1453366 | Protected | — |
| +44 1453367 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1453367 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1453368 | Allocated | Buzz Networks Limited |
| +44 1453368 | Allocated | Buzz Networks Limited |
| +44 1453369 | Allocated | Atomstream Limited |
| +44 1453369 | Allocated | Atomstream Limited |
| +44 1453370 | Allocated | Digitech Solutions Global Limited |
| +44 1453370 | Allocated | Digitech Solutions Global Limited |
| +44 1453371 | Allocated | Calltracks Limited |
| +44 1453371 | Allocated | Calltracks Limited |
| +44 1453372 | Allocated | TGL Services (UK) Ltd |
| +44 1453372 | Allocated | TGL Services (UK) Ltd |
| +44 1453373 | Allocated | Windsor Telecom Limited |
| +44 1453373 | Allocated | Windsor Telecom Limited |
| +44 1453374 | Allocated | Simwood eSMS Limited |
| +44 1453374 | Allocated | Simwood eSMS Limited |
| +44 1453375 | Allocated | Suretec Systems Ltd |
| +44 1453375 | Allocated | Suretec Systems Ltd |
| +44 1453376 | Allocated | VoiceHost Limited |
| +44 1453376 | Allocated | VoiceHost Limited |
| +44 1453377 | Allocated | Telappliant Limited |
| +44 1453377 | Allocated | Telappliant Limited |
| +44 1453378 | Allocated | Telephone Box Limited |
| +44 1453378 | Allocated | Telephone Box Limited |
| +44 1453379 | Allocated | Datazero Ltd |
| +44 1453379 | Allocated | Datazero Ltd |
| +44 1453380 | Protected | — |
| +44 1453380 | Protected | — |
| +44 1453381 | Allocated | Phone Co-Op Numbering Limited |
| +44 1453381 | Allocated | Phone Co-Op Numbering Limited |
| +44 1453382 | Protected | — |
| +44 1453382 | Protected | — |
| +44 1453383 | Allocated | Invosys Limited |
| +44 1453383 | Allocated | Invosys Limited |
| +44 1453384 | Allocated | Vodafone Ltd (C&W) |
| +44 1453384 | Allocated | Vodafone Ltd (C&W) |
| +44 1453385 | Allocated | Nexbridge Communications Limited |
| +44 1453385 | Allocated | Nexbridge Communications Limited |
| +44 1453386 | Protected | — |
| +44 1453386 | Protected | — |
| +44 1453387 | Allocated | Orbtalk Limited |
| +44 1453387 | Allocated | Orbtalk Limited |
| +44 1453388 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1453388 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1453389 | Allocated | Bicom Systems EURL |
| +44 1453389 | Allocated | Bicom Systems EURL |
| +44 1453390 | Protected | — |
| +44 1453390 | Protected | — |
| +44 1453391 | Allocated | Hello Telecom (UK) Limited |
| +44 1453391 | Allocated | Hello Telecom (UK) Limited |
| +44 1453392 | Allocated | Internexus Networks Limited |
| +44 1453392 | Allocated | Internexus Networks Limited |
| +44 1453393 | Allocated | YayYay Limited |
| +44 1453393 | Allocated | YayYay Limited |
| +44 1453394 | Allocated | API Telecom Limited |
| +44 1453394 | Allocated | API Telecom Limited |
| +44 1453395 | Protected | — |
| +44 1453395 | Protected | — |
| +44 1453396 | Allocated | ICC Networks Ltd |
| +44 1453396 | Allocated | ICC Networks Ltd |
| +44 1453397 | Free | — |
| +44 1453397 | Free | — |
| +44 1453398 | Free | — |
| +44 1453398 | Free | — |
| +44 1453399 | Free | — |
| +44 1453399 | Free | — |
| +44 14534 | Free | — |
| +44 145340 | Protected | — |
| +44 145340 | Protected | — |
| +44 145341 | Allocated | Barritel Limited |
| +44 145341 | Allocated | Barritel Limited |
| +44 1453420 | Protected | — |
| +44 1453420 | Protected | — |
| +44 1453421 | Protected | — |
| +44 1453421 | Protected | — |
| +44 1453422 | Protected | — |
| +44 1453422 | Protected | — |
| +44 1453423 | Allocated | Lumen Technologies UK Limited |
| +44 1453423 | Allocated | Lumen Technologies UK Limited |
| +44 1453424 | Protected | — |
| +44 1453424 | Protected | — |
| +44 1453425 | Protected | — |
| +44 1453425 | Protected | — |
| +44 1453426 | Protected | — |
| +44 1453426 | Protected | — |
| +44 1453427 | Protected | — |
| +44 1453427 | Protected | — |
| +44 1453428 | Protected | — |
| +44 1453428 | Protected | — |
| +44 1453429 | Allocated | Lumen Technologies UK Limited |
| +44 1453429 | Allocated | Lumen Technologies UK Limited |
| +44 145343 | Allocated | BT |
| +44 145343 | Allocated | BT |
| +44 145344 | Allocated | Served Up Limited |
| +44 145344 | Allocated | Served Up Limited |
| +44 145345 | Allocated | Sky UK Limited |
| +44 145345 | Allocated | Sky UK Limited |
| +44 145346 | Protected | — |
| +44 145346 | Protected | — |
| +44 1453470 | Protected | — |
| +44 1453470 | Protected | — |
| +44 1453471 | Protected | — |
| +44 1453471 | Protected | — |
| +44 1453472 | Protected | — |
| +44 1453472 | Protected | — |
| +44 1453473 | Protected | — |
| +44 1453473 | Protected | — |
| +44 1453474 | Protected | — |
| +44 1453474 | Protected | — |
| +44 1453475 | Protected | — |
| +44 1453475 | Protected | — |
| +44 1453476 | Protected | — |
| +44 1453476 | Protected | — |
| +44 1453477 | Allocated | Spitfire Network Services Limited |
| +44 1453477 | Allocated | Spitfire Network Services Limited |
| +44 1453478 | Protected | — |
| +44 1453478 | Protected | — |
| +44 1453479 | Protected | — |
| +44 1453479 | Protected | — |
| +44 145348 | Allocated | AQL Wholesale Ltd |
| +44 145348 | Allocated | AQL Wholesale Ltd |
| +44 1453490 | Allocated | Colt Technology Services |
| +44 1453490 | Allocated | Colt Technology Services |
| +44 1453491 | Allocated | Colt Technology Services |
| +44 1453491 | Allocated | Colt Technology Services |
| +44 1453492 | Allocated | TalkTalk Communications Limited |
| +44 1453492 | Allocated | TalkTalk Communications Limited |
| +44 1453493 | Allocated | Redwood Technologies Ltd |
| +44 1453493 | Allocated | Redwood Technologies Ltd |
| +44 1453494 | Allocated | M247 Ltd |
| +44 1453494 | Allocated | M247 Ltd |
| +44 1453495 | Allocated | Nuso Cloud UK Limited |
| +44 1453495 | Allocated | Nuso Cloud UK Limited |
| +44 1453496 | Protected | — |
| +44 1453496 | Protected | — |
| +44 1453497 | Allocated | Kalnet4U Ltd |
| +44 1453497 | Allocated | Kalnet4U Ltd |
| +44 1453498 | Allocated | Virgin Media Limited |
| +44 1453498 | Allocated | Virgin Media Limited |
| +44 1453499 | Allocated | Fuse 2 Communications Ltd |
| +44 1453499 | Allocated | Fuse 2 Communications Ltd |
| +44 14535 | Free | — |
| +44 145350 | Allocated | Redcentric Solutions Limited |
| +44 145350 | Allocated | Redcentric Solutions Limited |
| +44 145351 | Allocated | BT |
| +44 145351 | Allocated | BT |
| +44 145352 | Allocated | BT |
| +44 145352 | Allocated | BT |
| +44 145353 | Allocated | Vodafone Ltd (C&W) |
| +44 145353 | Allocated | Vodafone Ltd (C&W) |
| +44 145354 | Allocated | BT |
| +44 145354 | Allocated | BT |
| +44 1453550 | Allocated | GCI Network Solutions Limited |
| +44 1453550 | Allocated | GCI Network Solutions Limited |
| +44 1453551 | Allocated | GCI Network Solutions Limited |
| +44 1453551 | Allocated | GCI Network Solutions Limited |
| +44 1453552 | Allocated | GCI Network Solutions Limited |
| +44 1453552 | Allocated | GCI Network Solutions Limited |
| +44 1453553 | Allocated | GCI Network Solutions Limited |
| +44 1453553 | Allocated | GCI Network Solutions Limited |
| +44 1453554 | Allocated | GCI Network Solutions Limited |
| +44 1453554 | Allocated | GCI Network Solutions Limited |
| +44 1453555 | Allocated | GCI Network Solutions Limited |
| +44 1453555 | Allocated | GCI Network Solutions Limited |
| +44 1453556 | Allocated | GCI Network Solutions Limited |
| +44 1453556 | Allocated | GCI Network Solutions Limited |
| +44 1453557 | Allocated | GCI Network Solutions Limited |
| +44 1453557 | Allocated | GCI Network Solutions Limited |
| +44 1453558 | Allocated | GCI Network Solutions Limited |
| +44 1453558 | Allocated | GCI Network Solutions Limited |
| +44 1453559 | Allocated | GCI Network Solutions Limited |
| +44 1453559 | Allocated | GCI Network Solutions Limited |
| +44 145356 | Allocated | Vodafone Ltd (C&W) |
| +44 145356 | Allocated | Vodafone Ltd (C&W) |
| +44 1453570 | Allocated | Linear Telecoms Limited |
| +44 1453570 | Allocated | Linear Telecoms Limited |
| +44 1453571 | Allocated | IOVOX Limited |
| +44 1453571 | Allocated | IOVOX Limited |
| +44 1453572 | Allocated | Ziron Limited |
| +44 1453572 | Allocated | Ziron Limited |
| +44 1453573 | Allocated | Minotaur Telecom Limited |
| +44 1453573 | Allocated | Minotaur Telecom Limited |
| +44 1453574 | Allocated | Media Hawk Ltd |
| +44 1453574 | Allocated | Media Hawk Ltd |
| +44 1453575 | Allocated | Content Guru Limited |
| +44 1453575 | Allocated | Content Guru Limited |
| +44 1453576 | Allocated | XoverX Ltd |
| +44 1453576 | Allocated | XoverX Ltd |
| +44 1453577 | Protected | — |
| +44 1453577 | Protected | — |
| +44 1453578 | Allocated | Colt Technology Services |
| +44 1453578 | Allocated | Colt Technology Services |
| +44 1453579 | Protected | — |
| +44 1453579 | Protected | — |
| +44 145358 | Allocated | Flextel Limited |
| +44 145358 | Allocated | Flextel Limited |
| +44 1453590 | Allocated | DRD Communications Limited |
| +44 1453590 | Allocated | DRD Communications Limited |
| +44 1453591 | Protected | — |
| +44 1453591 | Protected | — |
| +44 1453592 | Protected | — |
| +44 1453592 | Protected | — |
| +44 1453593 | Protected | — |
| +44 1453593 | Protected | — |
| +44 1453594 | Protected | — |
| +44 1453594 | Protected | — |
| +44 1453595 | Protected | — |
| +44 1453595 | Protected | — |
| +44 1453596 | Protected | — |
| +44 1453596 | Protected | — |
| +44 1453597 | Protected | — |
| +44 1453597 | Protected | — |
| +44 1453598 | Protected | — |
| +44 1453598 | Protected | — |
| +44 1453599 | Protected | — |
| +44 1453599 | Protected | — |
| +44 14536 | Free | — |
| +44 1453600 | Free | — |
| +44 1453600 | Free | — |
| +44 1453601 | Free | — |
| +44 1453601 | Free | — |
| +44 1453602 | Allocated | I.T Communications Limited |
| +44 1453602 | Allocated | I.T Communications Limited |
| +44 1453603 | Allocated | Number Services Ltd. |
| +44 1453603 | Allocated | Number Services Ltd. |
| +44 1453604 | Allocated | Zapappi Ltd |
| +44 1453604 | Allocated | Zapappi Ltd |
| +44 1453605 | Allocated | IP Voice Networks Ltd |
| +44 1453605 | Allocated | IP Voice Networks Ltd |
| +44 1453606 | Allocated | Adepteo Limited |
| +44 1453606 | Allocated | Adepteo Limited |
| +44 1453607 | Allocated | EVE CONNECT LTD |
| +44 1453607 | Allocated | EVE CONNECT LTD |
| +44 1453608 | Allocated | Fuse 2 Communications Ltd |
| +44 1453608 | Allocated | Fuse 2 Communications Ltd |
| +44 1453609 | Allocated | TalkTalk Communications Limited |
| +44 1453609 | Allocated | TalkTalk Communications Limited |
| +44 1453610 | Allocated | Dial 9 Communications Limited |
| +44 1453610 | Allocated | Dial 9 Communications Limited |
| +44 1453611 | Allocated | 24 Seven Cloud Communications Ltd |
| +44 1453611 | Allocated | 24 Seven Cloud Communications Ltd |
| +44 1453612 | Allocated | VOXYONDER NETWORK SERVICES UK LTD |
| +44 1453612 | Allocated | VOXYONDER NETWORK SERVICES UK LTD |
| +44 1453613 | Allocated | DIDWW Ireland Limited |
| +44 1453613 | Allocated | DIDWW Ireland Limited |
| +44 1453614 | Allocated | SiPalto Ltd |
| +44 1453614 | Allocated | SiPalto Ltd |
| +44 1453615 | Allocated | Mi Telecom Limited |
| +44 1453615 | Allocated | Mi Telecom Limited |
| +44 1453616 | Allocated | ICUK Computing Services Limited |
| +44 1453616 | Allocated | ICUK Computing Services Limited |
| +44 1453617 | Allocated | Gamma Telecom Holdings Limited |
| +44 1453617 | Allocated | Gamma Telecom Holdings Limited |
| +44 1453618 | Allocated | Belgacom International Carrier Services SA |
| +44 1453618 | Allocated | Belgacom International Carrier Services SA |
| +44 1453619 | Allocated | BT |
| +44 1453619 | Allocated | BT |
| +44 1453620 | Allocated | Bink Networks Ltd |
| +44 1453620 | Allocated | Bink Networks Ltd |
| +44 1453621 | Allocated | BT |
| +44 1453621 | Allocated | BT |
| +44 1453622 | Free | — |
| +44 1453622 | Free | — |
| +44 1453623 | Free | — |
| +44 1453623 | Free | — |
| +44 1453624 | Allocated | Sysconfig Ltd |
| +44 1453624 | Allocated | Sysconfig Ltd |
| +44 1453625 | Free | — |
| +44 1453625 | Free | — |
| +44 1453626 | Allocated | KCOM Group Ltd |
| +44 1453626 | Allocated | KCOM Group Ltd |
| +44 1453627 | Free | — |
| +44 1453627 | Free | — |
| +44 1453628 | Free | — |
| +44 1453628 | Free | — |
| +44 1453629 | Free | — |
| +44 1453629 | Free | — |
| +44 1453630 | Free | — |
| +44 1453630 | Free | — |
| +44 1453631 | Free | — |
| +44 1453631 | Free | — |
| +44 1453632 | Free | — |
| +44 1453632 | Free | — |
| +44 1453633 | Free | — |
| +44 1453633 | Free | — |
| +44 1453634 | Free | — |
| +44 1453634 | Free | — |
| +44 1453635 | Free | — |
| +44 1453635 | Free | — |
| +44 1453636 | Free | — |
| +44 1453636 | Free | — |
| +44 1453637 | Free | — |
| +44 1453637 | Free | — |
| +44 1453638 | Free | — |
| +44 1453638 | Free | — |
| +44 1453639 | Free | — |
| +44 1453639 | Free | — |
| +44 1453640 | Free | — |
| +44 1453640 | Free | — |
| +44 1453641 | Free | — |
| +44 1453641 | Free | — |
| +44 1453642 | Free | — |
| +44 1453642 | Free | — |
| +44 1453643 | Free | — |
| +44 1453643 | Free | — |
| +44 1453644 | Free | — |
| +44 1453644 | Free | — |
| +44 1453645 | Free | — |
| +44 1453645 | Free | — |
| +44 1453646 | Free | — |
| +44 1453646 | Free | — |
| +44 1453647 | Free | — |
| +44 1453647 | Free | — |
| +44 1453648 | Free | — |
| +44 1453648 | Free | — |
| +44 1453649 | Free | — |
| +44 1453649 | Free | — |
| +44 1453650 | Protected | — |
| +44 1453650 | Protected | — |
| +44 1453651 | Protected | — |
| +44 1453651 | Protected | — |
| +44 1453652 | Protected | — |
| +44 1453652 | Protected | — |
| +44 1453653 | Protected | — |
| +44 1453653 | Protected | — |
| +44 1453654 | Protected | — |
| +44 1453654 | Protected | — |
| +44 1453655 | Protected | — |
| +44 1453655 | Protected | — |
| +44 1453656 | Protected | — |
| +44 1453656 | Protected | — |
| +44 1453657 | Protected | — |
| +44 1453657 | Protected | — |
| +44 1453658 | Protected | — |
| +44 1453658 | Protected | — |
| +44 1453659 | Protected | — |
| +44 1453659 | Protected | — |
| +44 1453660 | Protected | — |
| +44 1453660 | Protected | — |
| +44 1453661 | Protected | — |
| +44 1453661 | Protected | — |
| +44 1453662 | Protected | — |
| +44 1453662 | Protected | — |
| +44 1453663 | Protected | — |
| +44 1453663 | Protected | — |
| +44 1453664 | Protected | — |
| +44 1453664 | Protected | — |
| +44 1453665 | Protected | — |
| +44 1453665 | Protected | — |
| +44 1453666 | Protected | — |
| +44 1453666 | Protected | — |
| +44 1453667 | Protected | — |
| +44 1453667 | Protected | — |
| +44 1453668 | Protected | — |
| +44 1453668 | Protected | — |
| +44 1453669 | Protected | — |
| +44 1453669 | Protected | — |
| +44 1453670 | Protected | — |
| +44 1453670 | Protected | — |
| +44 1453671 | Protected | — |
| +44 1453671 | Protected | — |
| +44 1453672 | Protected | — |
| +44 1453672 | Protected | — |
| +44 1453673 | Protected | — |
| +44 1453673 | Protected | — |
| +44 1453674 | Protected | — |
| +44 1453674 | Protected | — |
| +44 1453675 | Protected | — |
| +44 1453675 | Protected | — |
| +44 1453676 | Protected | — |
| +44 1453676 | Protected | — |
| +44 1453677 | Protected | — |
| +44 1453677 | Protected | — |
| +44 1453678 | Protected | — |
| +44 1453678 | Protected | — |
| +44 1453679 | Protected | — |
| +44 1453679 | Protected | — |
| +44 1453680 | Protected | — |
| +44 1453680 | Protected | — |
| +44 1453681 | Protected | — |
| +44 1453681 | Protected | — |
| +44 1453682 | Protected | — |
| +44 1453682 | Protected | — |
| +44 1453683 | Protected | — |
| +44 1453683 | Protected | — |
| +44 1453684 | Protected | — |
| +44 1453684 | Protected | — |
| +44 1453685 | Protected | — |
| +44 1453685 | Protected | — |
| +44 1453686 | Protected | — |
| +44 1453686 | Protected | — |
| +44 1453687 | Protected | — |
| +44 1453687 | Protected | — |
| +44 1453688 | Protected | — |
| +44 1453688 | Protected | — |
| +44 1453689 | Protected | — |
| +44 1453689 | Protected | — |
| +44 1453690 | Protected | — |
| +44 1453690 | Protected | — |
| +44 1453691 | Protected | — |
| +44 1453691 | Protected | — |
| +44 1453692 | Protected | — |
| +44 1453692 | Protected | — |
| +44 1453693 | Protected | — |
| +44 1453693 | Protected | — |
| +44 1453694 | Protected | — |
| +44 1453694 | Protected | — |
| +44 1453695 | Protected | — |
| +44 1453695 | Protected | — |
| +44 1453696 | Protected | — |
| +44 1453696 | Protected | — |
| +44 1453697 | Protected | — |
| +44 1453697 | Protected | — |
| +44 1453698 | Protected | — |
| +44 1453698 | Protected | — |
| +44 1453699 | Protected | — |
| +44 1453699 | Protected | — |
| +44 14537 | Free | — |
| +44 145370 | Allocated | Gamma Telecom Holdings Limited |
| +44 145370 | Allocated | Gamma Telecom Holdings Limited |
| +44 1453710 | Protected | — |
| +44 1453710 | Protected | — |
| +44 1453711 | Protected | — |
| +44 1453711 | Protected | — |
| +44 1453712 | Protected | — |
| +44 1453712 | Protected | — |
| +44 1453713 | Protected | — |
| +44 1453713 | Protected | — |
| +44 1453714 | Protected | — |
| +44 1453714 | Protected | — |
| +44 1453715 | Protected | — |
| +44 1453715 | Protected | — |
| +44 1453716 | Protected | — |
| +44 1453716 | Protected | — |
| +44 1453717 | Protected | — |
| +44 1453717 | Protected | — |
| +44 1453718 | Protected | — |
| +44 1453718 | Protected | — |
| +44 1453719 | Protected | — |
| +44 1453719 | Protected | — |
| +44 1453720 | Protected | — |
| +44 1453720 | Protected | — |
| +44 1453721 | Protected | — |
| +44 1453721 | Protected | — |
| +44 1453722 | Protected | — |
| +44 1453722 | Protected | — |
| +44 1453723 | Protected | — |
| +44 1453723 | Protected | — |
| +44 1453724 | Protected | — |
| +44 1453724 | Protected | — |
| +44 1453725 | Protected | — |
| +44 1453725 | Protected | — |
| +44 1453726 | Protected | — |
| +44 1453726 | Protected | — |
| +44 1453727 | Protected | — |
| +44 1453727 | Protected | — |
| +44 1453728 | Protected | — |
| +44 1453728 | Protected | — |
| +44 1453729 | Protected | — |
| +44 1453729 | Protected | — |
| +44 145373 | Allocated | BT |
| +44 145373 | Allocated | BT |
| +44 145374 | Protected | — |
| +44 145374 | Protected | — |
| +44 145375 | Allocated | BT |
| +44 145375 | Allocated | BT |
| +44 145376 | Allocated | BT |
| +44 145376 | Allocated | BT |
| +44 1453770 | Allocated | Six Degrees Technology Group Limited |
| +44 1453770 | Allocated | Six Degrees Technology Group Limited |
| +44 1453771 | Allocated | Six Degrees Technology Group Limited |
| +44 1453771 | Allocated | Six Degrees Technology Group Limited |
| +44 1453772 | Protected | — |
| +44 1453772 | Protected | — |
| +44 1453773 | Protected | — |
| +44 1453773 | Protected | — |
| +44 1453774 | Allocated | Six Degrees Technology Group Limited |
| +44 1453774 | Allocated | Six Degrees Technology Group Limited |
| +44 1453775 | Protected | — |
| +44 1453775 | Protected | — |
| +44 1453776 | Protected | — |
| +44 1453776 | Protected | — |
| +44 1453777 | Protected | — |
| +44 1453777 | Protected | — |
| +44 1453778 | Protected | — |
| +44 1453778 | Protected | — |
| +44 1453779 | Protected | — |
| +44 1453779 | Protected | — |
| +44 1453780 | Protected | — |
| +44 1453780 | Protected | — |
| +44 1453781 | Protected | — |
| +44 1453781 | Protected | — |
| +44 1453782 | Protected | — |
| +44 1453782 | Protected | — |
| +44 1453783 | Protected | — |
| +44 1453783 | Protected | — |
| +44 1453784 | Protected | — |
| +44 1453784 | Protected | — |
| +44 1453785 | Protected | — |
| +44 1453785 | Protected | — |
| +44 1453786 | Protected | — |
| +44 1453786 | Protected | — |
| +44 1453787 | Protected | — |
| +44 1453787 | Protected | — |
| +44 1453788 | Protected | — |
| +44 1453788 | Protected | — |
| +44 1453789 | Protected | — |
| +44 1453789 | Protected | — |
| +44 145379 | Allocated | BT |
| +44 145379 | Allocated | BT |
| +44 14538 | Free | — |
| +44 145380 | Allocated | Magrathea Telecommunications Limited |
| +44 145380 | Allocated | Magrathea Telecommunications Limited |
| +44 145381 | Allocated | BT |
| +44 145381 | Allocated | BT |
| +44 145382 | Allocated | BT |
| +44 145382 | Allocated | BT |
| +44 145383 | Allocated | BT |
| +44 145383 | Allocated | BT |
| +44 145384 | Allocated | BT |
| +44 145384 | Allocated | BT |
| +44 145385 | Allocated | BT |
| +44 145385 | Allocated | BT |
| +44 145386 | Allocated | BT |
| +44 145386 | Allocated | BT |
| +44 145387 | Allocated | BT |
| +44 145387 | Allocated | BT |
| +44 145388 | Allocated | BT |
| +44 145388 | Allocated | BT |
| +44 145389 | Allocated | BT |
| +44 145389 | Allocated | BT |
| +44 14539 | Free | — |
| +44 1453900 | Protected | — |
| +44 1453900 | Protected | — |
| +44 1453901 | Protected | — |
| +44 1453901 | Protected | — |
| +44 1453902 | Protected | — |
| +44 1453902 | Protected | — |
| +44 1453903 | Protected | — |
| +44 1453903 | Protected | — |
| +44 1453904 | Protected | — |
| +44 1453904 | Protected | — |
| +44 1453905 | Protected | — |
| +44 1453905 | Protected | — |
| +44 1453906 | Protected | — |
| +44 1453906 | Protected | — |
| +44 1453907 | Protected | — |
| +44 1453907 | Protected | — |
| +44 1453908 | Protected | — |
| +44 1453908 | Protected | — |
| +44 1453909 | Protected | — |
| +44 1453909 | Protected | — |
| +44 1453910 | Protected | — |
| +44 1453910 | Protected | — |
| +44 1453911 | Protected | — |
| +44 1453911 | Protected | — |
| +44 1453912 | Protected | — |
| +44 1453912 | Protected | — |
| +44 1453913 | Protected | — |
| +44 1453913 | Protected | — |
| +44 1453914 | Protected | — |
| +44 1453914 | Protected | — |
| +44 1453915 | Protected | — |
| +44 1453915 | Protected | — |
| +44 1453916 | Protected | — |
| +44 1453916 | Protected | — |
| +44 1453917 | Protected | — |
| +44 1453917 | Protected | — |
| +44 1453918 | Protected | — |
| +44 1453918 | Protected | — |
| +44 1453919 | Protected | — |
| +44 1453919 | Protected | — |
| +44 1453920 | Protected | — |
| +44 1453920 | Protected | — |
| +44 1453921 | Protected | — |
| +44 1453921 | Protected | — |
| +44 1453922 | Protected | — |
| +44 1453922 | Protected | — |
| +44 1453923 | Protected | — |
| +44 1453923 | Protected | — |
| +44 1453924 | Protected | — |
| +44 1453924 | Protected | — |
| +44 1453925 | Protected | — |
| +44 1453925 | Protected | — |
| +44 1453926 | Protected | — |
| +44 1453926 | Protected | — |
| +44 1453927 | Protected | — |
| +44 1453927 | Protected | — |
| +44 1453928 | Protected | — |
| +44 1453928 | Protected | — |
| +44 1453929 | Protected | — |
| +44 1453929 | Protected | — |
| +44 1453930 | Protected | — |
| +44 1453930 | Protected | — |
| +44 1453931 | Protected | — |
| +44 1453931 | Protected | — |
| +44 1453932 | Protected | — |
| +44 1453932 | Protected | — |
| +44 1453933 | Allocated | Invoco Ltd |
| +44 1453933 | Allocated | Invoco Ltd |
| +44 1453934 | Protected | — |
| +44 1453934 | Protected | — |
| +44 1453935 | Protected | — |
| +44 1453935 | Protected | — |
| +44 1453936 | Protected | — |
| +44 1453936 | Protected | — |
| +44 1453937 | Protected | — |
| +44 1453937 | Protected | — |
| +44 1453938 | Protected | — |
| +44 1453938 | Protected | — |
| +44 1453939 | Protected | — |
| +44 1453939 | Protected | — |
| +44 1453940 | Protected | — |
| +44 1453940 | Protected | — |
| +44 1453941 | Protected | — |
| +44 1453941 | Protected | — |
| +44 1453942 | Protected | — |
| +44 1453942 | Protected | — |
| +44 1453943 | Protected | — |
| +44 1453943 | Protected | — |
| +44 1453944 | Protected | — |
| +44 1453944 | Protected | — |
| +44 1453945 | Protected | — |
| +44 1453945 | Protected | — |
| +44 1453946 | Protected | — |
| +44 1453946 | Protected | — |
| +44 1453947 | Protected | — |
| +44 1453947 | Protected | — |
| +44 1453948 | Protected | — |
| +44 1453948 | Protected | — |
| +44 1453949 | Protected | — |
| +44 1453949 | Protected | — |
| +44 1453950 | Protected | — |
| +44 1453950 | Protected | — |
| +44 1453951 | Protected | — |
| +44 1453951 | Protected | — |
| +44 1453952 | Protected | — |
| +44 1453952 | Protected | — |
| +44 1453953 | Protected | — |
| +44 1453953 | Protected | — |
| +44 1453954 | Protected | — |
| +44 1453954 | Protected | — |
| +44 1453955 | Protected | — |
| +44 1453955 | Protected | — |
| +44 1453956 | Protected | — |
| +44 1453956 | Protected | — |
| +44 1453957 | Protected | — |
| +44 1453957 | Protected | — |
| +44 1453958 | Protected | — |
| +44 1453958 | Protected | — |
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FAQs about 01453
Where is area code 01453?
Area code 01453 is Dursley, in Gloucestershire, GBR. It is a geographic UK dialling code from Ofcom's National Telephone Numbering Plan, so a landline beginning 01453 was originally allocated to an exchange serving the Dursley charging area. Dial it as 01453 XXX XXXX inside the UK, or +44 1453 from abroad.
What does the 01453 area code cover?
01453 is the UK dialling code for Dursley and the wider Gloucestershire area. When you receive a call starting with 01453 from a UK landline, the originating exchange is likely in or near Dursley, although Ofcom number portability means a customer can keep a 01453 number after moving elsewhere in the UK.
Is a 01453 number safe?
Most calls from 01453 are legitimate landlines belonging to local residents, businesses or contact centres operating from the Dursley charging area. Scammers can, however, spoof any UK area code from a VoIP gateway anywhere in the world, so a 01453 prefix alone does not prove the caller is genuinely in Dursley. Use the lookup above to see the Range Holder for the specific number, then read the AI internet check for behavioural reports — the risk score plus public forum reports are stronger evidence than the prefix alone.
How many providers operate 01453 number ranges?
Across the 876 ranges currently visible for 01453, 94 different Ofcom Range Holders are listed. The top allocations on this code are typically held by Openreach (BT), Virgin Media O2, and Sky Telecommunications Services, with additional blocks held by Gamma Telecom, Vonage, and a long tail of regional carriers. The full table further down this page shows every block in turn.
How are 01453 numbers written?
Numbers on 01453 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01453 234 567. From abroad the leading zero is dropped: +44 1453 then the local number.
What was the 01453 area code before?
01453 took its current form at PhONEday on 16 April 1995, when a "1" was inserted into every UK geographic code — before that the area dialled 0453. Any old signage or stationery showing 0453 refers to the same Dursley numbers.
How do I dial a 01453 number from abroad?
Dial your country’s international access prefix (00 from most of Europe, 011 from North America), then 44, then the 01453 number with the leading zero dropped. For example a Dursley 01453 number would be reached as +44 1453-XXX-XXXX. The leading zero used inside the UK is a national-significant prefix and is replaced by the +44 country code when calling internationally.
What's the difference between 01453 and a mobile number?
01453 is a geographic dialling code anchored on Dursley; numbers in this range are landlines (or VoIP services that have been allocated a geographic number). UK mobile numbers all start with 07 and are not tied to any geographic area. Calls from a 01453 landline are charged at the recipient’s standard landline rate; mobile-originated calls have separate inclusive-minute rules in most consumer tariffs.