UK area code
01573 area code — Kelso
01573 is Ofcom’s Kelso numbering area, in Scottish Borders, Scotland. 80 phone companies hold its 104 allocated number blocks. Its numbers are written like 01573 234 567. The nearest other codes are 01890 Ayton (13 km) and 01835 St Boswells (14 km).
01573 at a glance
- Ofcom area name
- Kelso
- Council area
- Scottish Borders
- Country
- Scotland
- Number format
- 01573 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0573)
- Allocated blocks
- 104 of 442 (24%) across 80 providers
- Newest block
- 26 January 2026 (1 in the last 12 months)
Sources: Ofcom numbering data (weekly) and area-code list, Ofcom Numbering Plan, ONS geography.
If a 01573 number called you
No clear pattern in reports for these numbers yet. If a call worried you:
- 1
Call back on a number you trust
If a caller says they're your bank, HMRC, a courier or a council, hang up and ring the organisation on the number from its website or your statement, never the number that called you. Caller ID can be faked.
- 2
Forward it to 7726
On a mobile, copy the caller's number from your recent calls and text it to 7726 (it spells SPAM). Scam texts can be forwarded to 7726 as they are. It's free, and your network uses the reports to investigate and block numbers.
- 3
Stop sales calls
Register your landline and mobile free with the Telephone Preference Service (0345 070 0707). Legitimate UK marketers must check it; calls should drop within 28 days. It won't stop scammers.
- 4
If you lost money or shared details
Call your bank on the number on your card (or 159 to reach most UK banks safely), then report it to Police Scotland on 101. In Scotland fraud goes to Police Scotland rather than Report Fraud.
01573 history and number format
Number format: Numbers on 01573 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01573 234 567.
Before 1995: 01573 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 0573.
Local dialling: Traditionally not from another 01573 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01573 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01573 was allocated on 15 July 1994, and the most recent on 26 January 2026. 1 block was allocated in the last 12 months — newly-activated ranges with no call history, which is worth knowing when an unfamiliar 01573 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01573 numbers
Every Ofcom range holder with blocks on 01573, by allocated blocks. The holder is the company Ofcom allocated the block to; a number can since have been ported to another provider (see range holder vs current provider).
| Range holder | Allocated | All blocks | First block | Latest block |
|---|---|---|---|---|
| BT | 11 | 11 | 15 July 1994 | 17 August 1995 |
| Gamma Telecom Holdings Limited | 8 | 8 | 7 February 2013 | 7 February 2013 |
| Resilient Limited | 3 | 3 | 18 May 2012 | 18 May 2012 |
| TalkTalk Communications Limited | 3 | 3 | 20 January 2012 | 12 February 2013 |
| Digital Space Group Limited | 2 | 2 | 14 May 2008 | 15 March 2016 |
| Fuse 2 Communications Ltd | 2 | 2 | 3 July 2017 | 22 January 2024 |
| Vodafone Ltd (C&W) | 2 | 2 | 5 September 2013 | 7 December 2020 |
| (AQ) LIMITED | 1 | 1 | 11 September 2012 | 11 September 2012 |
| 8x8 Communications UK Limited | 1 | 1 | 30 March 2012 | 30 March 2012 |
| AQL Wholesale Ltd | 1 | 1 | 7 January 2008 | 7 January 2008 |
| Adepteo Limited | 1 | 1 | 6 December 2016 | 6 December 2016 |
| Andrews & Arnold (Numbers) Ltd | 1 | 1 | 20 March 2009 | 20 March 2009 |
| Atomstream Limited | 1 | 1 | 12 May 2010 | 12 May 2010 |
| Barritel Limited | 1 | 1 | 21 June 2007 | 21 June 2007 |
| Bicom Systems EURL | 1 | 1 | 1 March 2012 | 1 March 2012 |
| Bink Networks Ltd | 1 | 1 | 3 April 2023 | 3 April 2023 |
| CFL Communications Ltd | 1 | 1 | 13 July 2009 | 13 July 2009 |
| Calltracks Limited | 1 | 1 | 31 January 2014 | 31 January 2014 |
| Colt Technology Services | 1 | 1 | 20 June 2016 | 20 June 2016 |
| Content Guru Limited | 1 | 1 | 12 October 2012 | 12 October 2012 |
| Convergence Group (wireless) Networks Limited | 1 | 1 | 21 May 2019 | 21 May 2019 |
| DIDWW Ireland Limited | 1 | 1 | 22 January 2019 | 22 January 2019 |
| Dial 9 Communications Limited | 1 | 1 | 10 December 2019 | 10 December 2019 |
| Digitech Solutions Global Limited | 1 | 1 | 27 April 2010 | 27 April 2010 |
| EVE CONNECT LTD | 1 | 1 | 15 June 2022 | 15 June 2022 |
| Flextel Limited | 1 | 1 | 25 October 2005 | 25 October 2005 |
| GCI Network Solutions Limited | 1 | 1 | 20 December 2023 | 20 December 2023 |
| Hello Telecom (UK) Limited | 1 | 1 | 11 November 2011 | 11 November 2011 |
| I.T Communications Limited | 1 | 1 | 10 June 2016 | 10 June 2016 |
| ICC Networks Ltd | 1 | 1 | 17 April 2012 | 17 April 2012 |
Showing the 30 largest of 80 holders.
Openreach exchanges at Kelso
Exchanges Openreach lists at this location in its copper stop-sell programme, with the date new copper orders stop.
All number blocks on 01573first 200 of 442, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 157300 | Protected | — |
| +44 157301 | Protected | — |
| +44 157302 | Protected | — |
| +44 157303 | Protected | — |
| +44 157304 | Protected | — |
| +44 157305 | Protected | — |
| +44 157306 | Protected | — |
| +44 157307 | Protected | — |
| +44 157308 | Protected | — |
| +44 157309 | Protected | — |
| +44 157310 | Protected | — |
| +44 157311 | Protected | — |
| +44 157312 | Protected | — |
| +44 157313 | Protected | — |
| +44 157314 | Protected | — |
| +44 157315 | Protected | — |
| +44 157316 | Protected | — |
| +44 157317 | Protected | — |
| +44 157318 | Protected | — |
| +44 157319 | Protected | — |
| +44 1573200 | Protected | — |
| +44 1573201 | Protected | — |
| +44 1573202 | Protected | — |
| +44 1573203 | Protected | — |
| +44 1573204 | Protected | — |
| +44 1573205 | Protected | — |
| +44 1573206 | Protected | — |
| +44 1573207 | Protected | — |
| +44 1573208 | Protected | — |
| +44 1573209 | Protected | — |
| +44 1573210 | Allocated | Phone Co-Op Numbering Limited |
| +44 1573211 | Protected | — |
| +44 1573212 | Allocated | Invosys Limited |
| +44 1573213 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1573214 | Allocated | Nexbridge Communications Limited |
| +44 1573215 | Protected | — |
| +44 1573216 | Allocated | TalkTalk Communications Limited |
| +44 1573217 | Protected | — |
| +44 1573218 | Allocated | Invoco Ltd |
| +44 1573219 | Allocated | Sky UK Limited |
| +44 157322 | Allocated | BT |
| +44 157323 | Allocated | Magrathea Telecommunications Limited |
| +44 1573240 | Allocated | Linear Telecoms Limited |
| +44 1573241 | Allocated | Ziron Limited |
| +44 1573242 | Protected | — |
| +44 1573243 | Allocated | Content Guru Limited |
| +44 1573244 | Allocated | IOVOX Limited |
| +44 1573245 | Allocated | Minotaur Telecom Limited |
| +44 1573246 | Allocated | Media Hawk Ltd |
| +44 1573247 | Allocated | Kalnet4U Ltd |
| +44 1573248 | Allocated | Fuse 2 Communications Ltd |
| +44 1573249 | Allocated | Nuso Cloud UK Limited |
| +44 1573250 | Protected | — |
| +44 1573251 | Protected | — |
| +44 1573252 | Protected | — |
| +44 1573253 | Protected | — |
| +44 1573254 | Protected | — |
| +44 1573255 | Protected | — |
| +44 1573256 | Protected | — |
| +44 1573257 | Protected | — |
| +44 1573258 | Protected | — |
| +44 1573259 | Protected | — |
| +44 157326 | Allocated | Flextel Limited |
| +44 1573270 | Allocated | VOXYONDER NETWORK SERVICES UK LTD |
| +44 1573271 | Allocated | Bink Networks Ltd |
| +44 1573272 | Allocated | KCOM Group Ltd |
| +44 1573273 | Free | — |
| +44 1573274 | Free | — |
| +44 1573275 | Free | — |
| +44 1573276 | Free | — |
| +44 1573277 | Free | — |
| +44 1573278 | Free | — |
| +44 1573279 | Free | — |
| +44 157328 | Allocated | BT |
| +44 157329 | Allocated | TTNC Limited |
| +44 157330 | Allocated | Nationwide Telephone Assistance Ltd |
| +44 157331 | Allocated | (AQ) LIMITED |
| +44 157332 | Allocated | VoIP-Un Limited |
| +44 157333 | Allocated | Vodafone Ltd (C&W) |
| +44 1573340 | Protected | — |
| +44 1573341 | Protected | — |
| +44 1573342 | Protected | — |
| +44 1573343 | Protected | — |
| +44 1573344 | Protected | — |
| +44 1573345 | Protected | — |
| +44 1573346 | Protected | — |
| +44 1573347 | Protected | — |
| +44 1573348 | Allocated | TalkTalk Communications Limited |
| +44 1573349 | Allocated | TalkTalk Communications Limited |
| +44 157335 | Allocated | AQL Wholesale Ltd |
| +44 1573360 | Allocated | Resilient Limited |
| +44 1573361 | Allocated | Resilient Limited |
| +44 1573362 | Protected | — |
| +44 1573363 | Protected | — |
| +44 1573364 | Protected | — |
| +44 1573365 | Protected | — |
| +44 1573366 | Protected | — |
| +44 1573367 | Protected | — |
| +44 1573368 | Protected | — |
| +44 1573369 | Allocated | Resilient Limited |
| +44 157337 | Allocated | Telecom2 Limited |
| +44 157338 | Allocated | Digital Space Group Limited |
| +44 157339 | Allocated | Nodemax Limited |
| +44 1573400 | Allocated | Gamma Telecom Holdings Limited |
| +44 1573401 | Allocated | Gamma Telecom Holdings Limited |
| +44 1573402 | Allocated | Gamma Telecom Holdings Limited |
| +44 1573403 | Protected | — |
| +44 1573404 | Protected | — |
| +44 1573405 | Allocated | Gamma Telecom Holdings Limited |
| +44 1573406 | Allocated | Gamma Telecom Holdings Limited |
| +44 1573407 | Allocated | Gamma Telecom Holdings Limited |
| +44 1573408 | Allocated | Gamma Telecom Holdings Limited |
| +44 1573409 | Allocated | Gamma Telecom Holdings Limited |
| +44 157341 | Allocated | BT |
| +44 1573420 | Allocated | BT |
| +44 1573421 | Allocated | BT |
| +44 1573422 | Quarantined | — |
| +44 1573423 | Protected | — |
| +44 1573424 | Protected | — |
| +44 1573425 | Protected | — |
| +44 1573426 | Protected | — |
| +44 1573427 | Protected | — |
| +44 1573428 | Protected | — |
| +44 1573429 | Allocated | BT |
| +44 157343 | Allocated | BT |
| +44 157344 | Allocated | BT |
| +44 157345 | Allocated | BT |
| +44 157346 | Allocated | BT |
| +44 157347 | Allocated | BT |
| +44 157348 | Protected | — |
| +44 157349 | Protected | — |
| +44 157350 | Allocated | Net-Work Internet Ltd |
| +44 157351 | Protected | — |
| +44 1573520 | Allocated | Voxbone SA |
| +44 1573521 | Protected | — |
| +44 1573522 | Protected | — |
| +44 1573523 | Protected | — |
| +44 1573524 | Protected | — |
| +44 1573525 | Protected | — |
| +44 1573526 | Protected | — |
| +44 1573527 | Protected | — |
| +44 1573528 | Protected | — |
| +44 1573529 | Protected | — |
| +44 157353 | Protected | — |
| +44 157354 | Allocated | Solutios Limited |
| +44 157355 | Allocated | Served Up Limited |
| +44 157356 | Allocated | Mars Communications Limited |
| +44 1573570 | Protected | — |
| +44 1573571 | Protected | — |
| +44 1573572 | Protected | — |
| +44 1573573 | Protected | — |
| +44 1573574 | Protected | — |
| +44 1573575 | Protected | — |
| +44 1573576 | Protected | — |
| +44 1573577 | Allocated | Digital Space Group Limited |
| +44 1573578 | Protected | — |
| +44 1573579 | Protected | — |
| +44 157358 | Quarantined | — |
| +44 157359 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 157360 | Allocated | Nexus Telecommunications Limited |
| +44 157361 | Allocated | Invade International Ltd |
| +44 157362 | Quarantined | — |
| +44 157363 | Allocated | CFL Communications Ltd |
| +44 157364 | Protected | — |
| +44 1573650 | Allocated | Digitech Solutions Global Limited |
| +44 1573651 | Allocated | Calltracks Limited |
| +44 1573652 | Allocated | GCI Network Solutions Limited |
| +44 1573653 | Allocated | Windsor Telecom Limited |
| +44 1573654 | Allocated | Atomstream Limited |
| +44 1573655 | Allocated | Suretec Systems Ltd |
| +44 1573656 | Allocated | VoiceHost Limited |
| +44 1573657 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1573658 | Allocated | Telephone Box Limited |
| +44 1573659 | Protected | — |
| +44 1573660 | Allocated | Hello Telecom (UK) Limited |
| +44 1573661 | Allocated | Internexus Networks Limited |
| +44 1573662 | Allocated | Vodafone Ltd (C&W) |
| +44 1573663 | Allocated | Bicom Systems EURL |
| +44 1573664 | Allocated | 8x8 Communications UK Limited |
| +44 1573665 | Allocated | Orbtalk Limited |
| +44 1573666 | Protected | — |
| +44 1573667 | Allocated | ICC Networks Ltd |
| +44 1573668 | Allocated | Simwood eSMS Limited |
| +44 1573669 | Allocated | XoverX Ltd |
| +44 1573670 | Allocated | Convergence Group (wireless) Networks Limited |
| +44 1573671 | Protected | — |
| +44 1573672 | Allocated | EVE CONNECT LTD |
| +44 1573673 | Allocated | Colt Technology Services |
| +44 1573674 | Allocated | SiPalto Ltd |
| +44 1573675 | Protected | — |
| +44 1573676 | Allocated | I.T Communications Limited |
| +44 1573677 | Allocated | Redwood Technologies Ltd |
| +44 1573678 | Allocated | YayYay Limited |
| +44 1573679 | Protected | — |
| +44 1573680 | Allocated | Zapappi Ltd |
| +44 1573681 | Allocated | IP Voice Networks Ltd |
| +44 1573682 | Allocated | Dial 9 Communications Limited |
| +44 1573683 | Allocated | Mi Telecom Limited |
| +44 1573684 | Allocated | ICUK Computing Services Limited |
| +44 1573685 | Allocated | DIDWW Ireland Limited |
Related lookups
- 01890 Ayton13 km away
- 01835 St Boswells14 km away
- 01361 Duns21 km away
- 01896 Galashiels23 km away
- BT11 allocated blocks on 01573
- Gamma Telecom Holdings Limited8 allocated blocks on 01573
- Resilient Limited3 allocated blocks on 01573
- All UK towns A–ZDialling codes by town
- More Scotland codesSame region
- All UK area codesBrowse every 01/02 dialling code
- Lookup any UK numberFree reverse phone lookup
- UK area codes explainedCornerstone guide
- 020 London numbers explainedCornerstone guide
- 0330 numbers explainedCornerstone guide
- How Ofcom allocates UK phone numbersCornerstone guide
FAQs about 01573
Where is area code 01573?
01573 is Ofcom's Kelso numbering area, in Scottish Borders, Scotland. Its exchange town is in Scottish Borders. From abroad, drop the 0 and dial +44 1573.
Do I need to dial 01573 for a local call?
Traditionally not from another 01573 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01573 first always works, and mobiles always need it.
How are 01573 numbers written?
Numbers on 01573 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01573 234 567. From abroad the leading zero is dropped: +44 1573 then the local number.
What was the 01573 area code before?
01573 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 0573. Old signage or stationery showing 0573 refers to the same Kelso numbers.
Which phone companies hold 01573 numbers?
Ofcom lists 80 providers with allocated blocks on 01573. The largest are BT with 11 of the 104 allocated blocks, Gamma Telecom Holdings Limited with 8 of the 104 allocated blocks and Resilient Limited with 3 of the 104 allocated blocks. Numbers can be ported, so a number's current provider may differ from the block's holder.
Which area codes are next to 01573?
By distance between exchange towns, the nearest other codes are 01890 Ayton (13 km), 01835 St Boswells (14 km), 01361 Duns (21 km) and 01896 Galashiels (23 km).
How do I report a scam call from a 01573 number?
On a mobile, text the caller's number to 7726 (free). If you lost money or shared details, call your bank and report it to Police Scotland on 101. Unwanted sales calls go to the ICO after registering with the Telephone Preference Service.