UK area code
01787 area code — Sudbury
01787 is Ofcom’s Sudbury numbering area, in Suffolk, East of England England. 95 phone companies hold its 135 allocated number blocks. Its numbers are written like 01787 234 567. The nearest other codes are 01206 Colchester (21 km) and 01440 Haverhill (21 km).
01787 at a glance
- Ofcom area name
- Sudbury
- County
- Suffolk
- Council area
- Suffolk
- Region
- East of England England
- Number format
- 01787 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0787)
- Allocated blocks
- 135 of 370 (36%) across 95 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 01787 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 Report Fraud online or on 0300 123 2040. Report Fraud replaced Action Fraud on 4 December 2025 for England, Wales and Northern Ireland; in Scotland call Police Scotland on 101.
01787 history and number format
Number format: Numbers on 01787 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01787 234 567.
Before 1995: 01787 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 0787.
Local dialling: Traditionally not from another 01787 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01787 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01787 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 01787 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01787 numbers
Every Ofcom range holder with blocks on 01787, 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 | 16 | 16 | 15 July 1994 | 20 November 2023 |
| Vodafone Ltd (C&W) | 7 | 7 | 6 September 2013 | 12 November 2021 |
| Magrathea Telecommunications Limited | 6 | 6 | 17 November 2011 | 17 November 2011 |
| TalkTalk Communications Limited | 5 | 5 | 31 August 2011 | 25 July 2018 |
| Fuse 2 Communications Ltd | 3 | 3 | 3 July 2017 | 22 January 2024 |
| GCI Network Solutions Limited | 3 | 3 | 2 May 2017 | 22 December 2023 |
| Colt Technology Services | 2 | 2 | 5 May 2015 | 30 September 2019 |
| Datazero Ltd | 2 | 2 | 15 November 2010 | 8 May 2012 |
| Digital Space Group Limited | 2 | 2 | 23 May 2008 | 15 March 2016 |
| Resilient Limited | 2 | 2 | 12 September 2011 | 12 September 2011 |
| Served Up Limited | 2 | 2 | 1 March 2013 | 1 March 2013 |
| Sky UK Limited | 2 | 2 | 28 June 2013 | 28 June 2013 |
| (AQ) LIMITED | 1 | 1 | 26 September 2012 | 26 September 2012 |
| 24 Seven Cloud Communications Ltd | 1 | 1 | 22 January 2020 | 22 January 2020 |
| 8x8 Communications UK Limited | 1 | 1 | 10 April 2012 | 10 April 2012 |
| AQL Wholesale Ltd | 1 | 1 | 3 January 2008 | 3 January 2008 |
| Adepteo Limited | 1 | 1 | 6 December 2016 | 6 December 2016 |
| Andrews & Arnold (Numbers) Ltd | 1 | 1 | 7 September 2011 | 7 September 2011 |
| Atomstream Limited | 1 | 1 | 14 May 2010 | 14 May 2010 |
| Barritel Limited | 1 | 1 | 12 June 2007 | 12 June 2007 |
| Belgacom International Carrier Services SA | 1 | 1 | 23 April 2020 | 23 April 2020 |
| Bicom Systems EURL | 1 | 1 | 1 March 2012 | 1 March 2012 |
| Bink Networks Ltd | 1 | 1 | 11 April 2023 | 11 April 2023 |
| CFL Communications Ltd | 1 | 1 | 17 July 2009 | 17 July 2009 |
| Calltracks Limited | 1 | 1 | 20 September 2013 | 20 September 2013 |
| Content Guru Limited | 1 | 1 | 11 October 2012 | 11 October 2012 |
| Convergence Group (wireless) Networks Limited | 1 | 1 | 21 May 2019 | 21 May 2019 |
| DIDWW Ireland Limited | 1 | 1 | 27 January 2020 | 27 January 2020 |
| DRD Communications Limited | 1 | 1 | 5 October 2023 | 5 October 2023 |
| Dial 9 Communications Limited | 1 | 1 | 13 January 2020 | 13 January 2020 |
Showing the 30 largest of 95 holders.
All number blocks on 01787first 200 of 370, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 178700 | Protected | — |
| +44 178701 | Protected | — |
| +44 178702 | Protected | — |
| +44 178703 | Protected | — |
| +44 178704 | Protected | — |
| +44 178705 | Protected | — |
| +44 178706 | Protected | — |
| +44 178707 | Protected | — |
| +44 178708 | Protected | — |
| +44 178709 | Protected | — |
| +44 178710 | Protected | — |
| +44 178711 | Protected | — |
| +44 178712 | Protected | — |
| +44 178713 | Protected | — |
| +44 178714 | Protected | — |
| +44 178715 | Protected | — |
| +44 178716 | Protected | — |
| +44 178717 | Protected | — |
| +44 178718 | Protected | — |
| +44 178719 | Protected | — |
| +44 1787200 | Allocated | Linear Telecoms Limited |
| +44 1787201 | Allocated | Nexbridge Communications Limited |
| +44 1787202 | Protected | — |
| +44 1787203 | Allocated | Orbtalk Limited |
| +44 1787204 | Allocated | TalkTalk Communications Limited |
| +44 1787205 | Protected | — |
| +44 1787206 | Allocated | Internexus Networks Limited |
| +44 1787207 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1787208 | Allocated | Hello Telecom (UK) Limited |
| +44 1787209 | Allocated | Simwood eSMS Limited |
| +44 178721 | Allocated | BT |
| +44 178722 | Allocated | BT |
| +44 178723 | Allocated | BT |
| +44 178724 | Allocated | BT |
| +44 178725 | Allocated | Vodafone Ltd (C&W) |
| +44 178726 | Allocated | BT |
| +44 178727 | Allocated | BT |
| +44 178728 | Allocated | BT |
| +44 178729 | Allocated | BT |
| +44 1787300 | Protected | — |
| +44 1787301 | Protected | — |
| +44 1787302 | Protected | — |
| +44 1787303 | Protected | — |
| +44 1787304 | Allocated | Six Degrees Technology Group Limited |
| +44 1787305 | Protected | — |
| +44 1787306 | Protected | — |
| +44 1787307 | Protected | — |
| +44 1787308 | Protected | — |
| +44 1787309 | Protected | — |
| +44 178731 | Allocated | BT |
| +44 178732 | Allocated | Gamma Telecom Holdings Limited |
| +44 1787330 | Allocated | Bicom Systems EURL |
| +44 1787331 | Protected | — |
| +44 1787332 | Allocated | 8x8 Communications UK Limited |
| +44 1787333 | Allocated | VoiceHost Limited |
| +44 1787334 | Allocated | ICC Networks Ltd |
| +44 1787335 | Allocated | Ziron Limited |
| +44 1787336 | Allocated | IOVOX Limited |
| +44 1787337 | Allocated | Datazero Ltd |
| +44 1787338 | Protected | — |
| +44 1787339 | Allocated | Invoco Ltd |
| +44 1787340 | Allocated | Vodafone Ltd (C&W) |
| +44 1787341 | Allocated | Vodafone Ltd (C&W) |
| +44 1787342 | Allocated | Vodafone Ltd (C&W) |
| +44 1787343 | Allocated | Vodafone Ltd (C&W) |
| +44 1787344 | Protected | — |
| +44 1787345 | Protected | — |
| +44 1787346 | Protected | — |
| +44 1787347 | Protected | — |
| +44 1787348 | Allocated | Vodafone Ltd (C&W) |
| +44 1787349 | Allocated | Vodafone Ltd (C&W) |
| +44 1787350 | Protected | — |
| +44 1787351 | Allocated | DRD Communications Limited |
| +44 1787352 | Protected | — |
| +44 1787353 | Protected | — |
| +44 1787354 | Protected | — |
| +44 1787355 | Protected | — |
| +44 1787356 | Protected | — |
| +44 1787357 | Protected | — |
| +44 1787358 | Protected | — |
| +44 1787359 | Protected | — |
| +44 1787360 | Protected | — |
| +44 1787361 | Protected | — |
| +44 1787362 | Protected | — |
| +44 1787363 | Protected | — |
| +44 1787364 | Protected | — |
| +44 1787365 | Protected | — |
| +44 1787366 | Protected | — |
| +44 1787367 | Protected | — |
| +44 1787368 | Protected | — |
| +44 1787369 | Protected | — |
| +44 178737 | Allocated | BT |
| +44 1787380 | Allocated | Magrathea Telecommunications Limited |
| +44 1787381 | Allocated | Magrathea Telecommunications Limited |
| +44 1787382 | Protected | — |
| +44 1787383 | Allocated | Magrathea Telecommunications Limited |
| +44 1787384 | Protected | — |
| +44 1787385 | Protected | — |
| +44 1787386 | Protected | — |
| +44 1787387 | Allocated | Magrathea Telecommunications Limited |
| +44 1787388 | Allocated | Magrathea Telecommunications Limited |
| +44 1787389 | Allocated | Magrathea Telecommunications Limited |
| +44 178739 | Protected | — |
| +44 1787400 | Protected | — |
| +44 1787401 | Protected | — |
| +44 1787402 | Protected | — |
| +44 1787403 | Protected | — |
| +44 1787404 | Protected | — |
| +44 1787405 | Protected | — |
| +44 1787406 | Protected | — |
| +44 1787407 | Protected | — |
| +44 1787408 | Protected | — |
| +44 1787409 | Protected | — |
| +44 1787410 | Protected | — |
| +44 1787411 | Protected | — |
| +44 1787412 | Protected | — |
| +44 1787413 | Protected | — |
| +44 1787414 | Protected | — |
| +44 1787415 | Protected | — |
| +44 1787416 | Protected | — |
| +44 1787417 | Protected | — |
| +44 1787418 | Protected | — |
| +44 1787419 | Allocated | GTT-EMEA LTD |
| +44 178742 | Allocated | TelNG Limited |
| +44 178743 | Protected | — |
| +44 178744 | Allocated | GCI Network Solutions Limited |
| +44 178745 | Allocated | Localphone Limited |
| +44 178746 | Allocated | BT |
| +44 178747 | Allocated | BT |
| +44 178748 | Allocated | TGL Services (UK) Ltd |
| +44 178749 | Allocated | Flextel Limited |
| +44 178750 | Allocated | Digital Space Group Limited |
| +44 178751 | Allocated | Nodemax Limited |
| +44 178752 | Protected | — |
| +44 1787530 | Protected | — |
| +44 1787531 | Protected | — |
| +44 1787532 | Allocated | Served Up Limited |
| +44 1787533 | Allocated | Served Up Limited |
| +44 1787534 | Protected | — |
| +44 1787535 | Protected | — |
| +44 1787536 | Protected | — |
| +44 1787537 | Protected | — |
| +44 1787538 | Protected | — |
| +44 1787539 | Protected | — |
| +44 1787540 | Allocated | Voxbone SA |
| +44 1787541 | Protected | — |
| +44 1787542 | Protected | — |
| +44 1787543 | Protected | — |
| +44 1787544 | Protected | — |
| +44 1787545 | Protected | — |
| +44 1787546 | Protected | — |
| +44 1787547 | Protected | — |
| +44 1787548 | Protected | — |
| +44 1787549 | Protected | — |
| +44 1787550 | Protected | — |
| +44 1787551 | Protected | — |
| +44 1787552 | Protected | — |
| +44 1787553 | Protected | — |
| +44 1787554 | Protected | — |
| +44 1787555 | Allocated | Net-Work Internet Ltd |
| +44 1787556 | Protected | — |
| +44 1787557 | Protected | — |
| +44 1787558 | Protected | — |
| +44 1787559 | Protected | — |
| +44 178756 | Protected | — |
| +44 178757 | Allocated | Solutios Limited |
| +44 178758 | Allocated | Sky UK Limited |
| +44 178759 | Quarantined | — |
| +44 178760 | Allocated | Mars Communications Limited |
| +44 1787610 | Protected | — |
| +44 1787611 | Protected | — |
| +44 1787612 | Protected | — |
| +44 1787613 | Protected | — |
| +44 1787614 | Protected | — |
| +44 1787615 | Protected | — |
| +44 1787616 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 1787617 | Protected | — |
| +44 1787618 | Protected | — |
| +44 1787619 | Protected | — |
| +44 178762 | Allocated | Nexus Telecommunications Limited |
| +44 178763 | Allocated | Invade International Ltd |
| +44 178764 | Allocated | Telecoms World Limited |
| +44 178765 | Quarantined | — |
| +44 178766 | Allocated | CFL Communications Ltd |
| +44 178767 | Protected | — |
| +44 178768 | Protected | — |
| +44 1787690 | Allocated | Calltracks Limited |
| +44 1787691 | Allocated | Datazero Ltd |
| +44 1787692 | Allocated | Telephone Box Limited |
| +44 1787693 | Protected | — |
| +44 1787694 | Allocated | Phone Co-Op Numbering Limited |
| +44 1787695 | Allocated | Invosys Limited |
| +44 1787696 | Allocated | Suretec Systems Ltd |
| +44 1787697 | Allocated | Atomstream Limited |
| +44 1787698 | Allocated | Telappliant Limited |
| +44 1787699 | Allocated | Windsor Telecom Limited |
| +44 1787700 | Allocated | WightFibre Limited |
| +44 1787701 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1787702 | Protected | — |
| +44 1787703 | Allocated | BT |
Related lookups
- 01206 Colchester21 km away
- 01440 Haverhill21 km away
- 01376 Braintree22 km away
- 01284 Bury St Edmunds22 km away
- BT16 allocated blocks on 01787
- Vodafone Ltd (C&W)7 allocated blocks on 01787
- Magrathea Telecommunications Limited6 allocated blocks on 01787
- All UK towns A–ZDialling codes by town
- More Suffolk 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 01787
Where is area code 01787?
01787 is Ofcom's Sudbury numbering area, in Suffolk, East of England England. Its exchange town is in Suffolk. From abroad, drop the 0 and dial +44 1787.
Do I need to dial 01787 for a local call?
Traditionally not from another 01787 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01787 first always works, and mobiles always need it.
How are 01787 numbers written?
Numbers on 01787 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01787 234 567. From abroad the leading zero is dropped: +44 1787 then the local number.
What was the 01787 area code before?
01787 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 0787. Old signage or stationery showing 0787 refers to the same Sudbury numbers.
Which phone companies hold 01787 numbers?
Ofcom lists 95 providers with allocated blocks on 01787. The largest are BT with 16 of the 135 allocated blocks, Vodafone with 7 of the 135 allocated blocks and Magrathea Telecommunications Limited with 6 of the 135 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 01787?
By distance between exchange towns, the nearest other codes are 01206 Colchester (21 km), 01440 Haverhill (21 km), 01376 Braintree (22 km) and 01284 Bury St Edmunds (22 km).
How do I report a scam call from a 01787 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 Report Fraud (0300 123 2040), which replaced Action Fraud in December 2025. Unwanted sales calls go to the ICO after registering with the Telephone Preference Service.