UK area code
01277 area code — Brentwood
01277 is Ofcom’s Brentwood numbering area, in Essex, East of England England. 103 phone companies hold its 185 allocated number blocks. Its numbers are written like 01277 234 567. The nearest other codes are 01708 Romford (10 km) and 01268 Basildon (12 km).
01277 at a glance
- Ofcom area name
- Brentwood
- County
- Essex
- Council area
- Essex
- Region
- East of England England
- Number format
- 01277 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0277)
- Allocated blocks
- 185 of 415 (45%) across 103 providers
- Newest block
- 18 June 2026 (2 in the last 12 months)
Sources: Ofcom numbering data (weekly) and area-code list, Ofcom Numbering Plan, ONS geography.
If a 01277 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.
01277 history and number format
Number format: Numbers on 01277 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01277 234 567.
Before 1995: 01277 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 0277.
Local dialling: Traditionally not from another 01277 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01277 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01277 was allocated on 15 July 1994, and the most recent on 18 June 2026. 2 blocks were allocated in the last 12 months — newly-activated ranges with no call history, which is worth knowing when an unfamiliar 01277 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01277 numbers
Every Ofcom range holder with blocks on 01277, 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 | 27 | 27 | 15 July 1994 | 6 February 2024 |
| Vodafone Ltd (C&W) | 14 | 14 | 24 July 2013 | 10 November 2021 |
| Virgin Media Limited | 9 | 9 | 28 June 2012 | 17 March 2016 |
| Gamma Telecom Holdings Limited | 8 | 8 | 5 April 2004 | 18 June 2026 |
| TalkTalk Communications Limited | 5 | 5 | 16 May 2007 | 19 February 2013 |
| Colt Technology Services | 4 | 4 | 12 September 2013 | 28 June 2021 |
| GCI Network Solutions Limited | 4 | 4 | 20 April 2017 | 20 December 2023 |
| Sky UK Limited | 4 | 4 | 28 June 2013 | 27 October 2022 |
| Barritel Limited | 3 | 3 | 8 October 2008 | 23 December 2022 |
| Digital Space Group Limited | 3 | 3 | 29 November 2007 | 12 April 2016 |
| Lumen Technologies UK Limited | 3 | 3 | 17 January 2012 | 17 January 2012 |
| Resilient Limited | 3 | 3 | 18 May 2012 | 18 May 2012 |
| DRD Communications Limited | 2 | 2 | 5 October 2023 | 5 October 2023 |
| Datazero Ltd | 2 | 2 | 3 December 2010 | 29 April 2019 |
| Fuse 2 Communications Ltd | 2 | 2 | 4 July 2017 | 22 January 2024 |
| IOVOX Limited | 2 | 2 | 2 July 2012 | 23 December 2016 |
| Media Hawk Ltd | 2 | 2 | 10 April 2013 | 24 April 2023 |
| Six Degrees Technology Group Limited | 2 | 2 | 13 January 2020 | 13 January 2020 |
| TGL Services (UK) Ltd | 2 | 2 | 2 February 2015 | 2 February 2015 |
| (AQ) LIMITED | 1 | 1 | 19 October 2011 | 19 October 2011 |
| 8x8 Communications UK Limited | 1 | 1 | 26 March 2012 | 26 March 2012 |
| AQL Wholesale Ltd | 1 | 1 | 21 June 2006 | 21 June 2006 |
| Adepteo Limited | 1 | 1 | 17 January 2017 | 17 January 2017 |
| Alnitak GmbH | 1 | 1 | 6 January 2017 | 6 January 2017 |
| Andrews & Arnold (Numbers) Ltd | 1 | 1 | 27 February 2009 | 27 February 2009 |
| Atomstream Limited | 1 | 1 | 25 February 2010 | 25 February 2010 |
| Belgacom International Carrier Services SA | 1 | 1 | 3 October 2019 | 3 October 2019 |
| Bicom Systems EURL | 1 | 1 | 1 March 2012 | 1 March 2012 |
| Bink Networks Ltd | 1 | 1 | 27 March 2023 | 27 March 2023 |
| Buzz Networks Limited | 1 | 1 | 1 March 2010 | 1 March 2010 |
Showing the 30 largest of 103 holders.
Openreach exchanges at Brentwood
Exchanges Openreach lists at this location in its copper stop-sell programme, with the date new copper orders stop.
- Brentwood EABRWStop sell Removed from stop sell · N/A
- Brentwood (BNJ) EABRWStop sell 14-Feb-26 · Tranche 19
All number blocks on 01277first 200 of 415, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 127700 | Protected | — |
| +44 127701 | Protected | — |
| +44 127702 | Protected | — |
| +44 127703 | Protected | — |
| +44 127704 | Protected | — |
| +44 127705 | Protected | — |
| +44 127706 | Protected | — |
| +44 127707 | Protected | — |
| +44 127708 | Protected | — |
| +44 127709 | Protected | — |
| +44 127710 | Protected | — |
| +44 127711 | Protected | — |
| +44 127712 | Protected | — |
| +44 127713 | Protected | — |
| +44 127714 | Protected | — |
| +44 127715 | Protected | — |
| +44 127716 | Protected | — |
| +44 127717 | Protected | — |
| +44 127718 | Protected | — |
| +44 127719 | Protected | — |
| +44 127720 | Allocated | BT |
| +44 127721 | Allocated | BT |
| +44 127722 | Allocated | BT |
| +44 127723 | Allocated | BT |
| +44 127724 | Allocated | BT |
| +44 127725 | Allocated | BT |
| +44 127726 | Allocated | BT |
| +44 127727 | Protected | — |
| +44 127728 | Allocated | Gamma Telecom Holdings Limited |
| +44 1277290 | Allocated | Linear Telecoms Limited |
| +44 1277291 | Allocated | Internexus Networks Limited |
| +44 1277292 | Protected | — |
| +44 1277293 | Allocated | Bicom Systems EURL |
| +44 1277294 | Allocated | 8x8 Communications UK Limited |
| +44 1277295 | Allocated | TalkTalk Communications Limited |
| +44 1277296 | Allocated | ICC Networks Ltd |
| +44 1277297 | Allocated | Ziron Limited |
| +44 1277298 | Allocated | IOVOX Limited |
| +44 1277299 | Allocated | Datazero Ltd |
| +44 127730 | Allocated | BT |
| +44 127731 | Allocated | BT |
| +44 127732 | Allocated | BT |
| +44 1277330 | Allocated | Virgin Media Limited |
| +44 1277331 | Allocated | Virgin Media Limited |
| +44 1277332 | Allocated | Virgin Media Limited |
| +44 1277333 | Allocated | Virgin Media Limited |
| +44 1277334 | Allocated | Virgin Media Limited |
| +44 1277335 | Allocated | Virgin Media Limited |
| +44 1277336 | Allocated | Virgin Media Limited |
| +44 1277337 | Protected | — |
| +44 1277338 | Protected | — |
| +44 1277339 | Allocated | Virgin Media Limited |
| +44 127734 | Protected | — |
| +44 127735 | Allocated | BT |
| +44 127736 | Allocated | BT |
| +44 127737 | Allocated | BT |
| +44 127738 | Allocated | TGL Services (UK) Ltd |
| +44 1277390 | Allocated | GTT-EMEA LTD |
| +44 1277391 | Protected | — |
| +44 1277392 | Protected | — |
| +44 1277393 | Protected | — |
| +44 1277394 | Protected | — |
| +44 1277395 | Protected | — |
| +44 1277396 | Protected | — |
| +44 1277397 | Protected | — |
| +44 1277398 | Protected | — |
| +44 1277399 | Protected | — |
| +44 127740 | Allocated | Simwood eSMS Limited |
| +44 127741 | Allocated | Sky UK Limited |
| +44 127742 | Allocated | AQL Wholesale Ltd |
| +44 1277430 | Protected | — |
| +44 1277431 | Protected | — |
| +44 1277432 | Protected | — |
| +44 1277433 | Protected | — |
| +44 1277434 | Protected | — |
| +44 1277435 | Protected | — |
| +44 1277436 | Protected | — |
| +44 1277437 | Protected | — |
| +44 1277438 | Protected | — |
| +44 1277439 | Protected | — |
| +44 1277440 | Protected | — |
| +44 1277441 | Protected | — |
| +44 1277442 | Protected | — |
| +44 1277443 | Protected | — |
| +44 1277444 | Protected | — |
| +44 1277445 | Protected | — |
| +44 1277446 | Protected | — |
| +44 1277447 | Protected | — |
| +44 1277448 | Protected | — |
| +44 1277449 | Protected | — |
| +44 127745 | Allocated | TelNG Limited |
| +44 127746 | Allocated | Commi Holdings Limited |
| +44 127747 | Protected | — |
| +44 1277480 | Protected | — |
| +44 1277481 | Protected | — |
| +44 1277482 | Protected | — |
| +44 1277483 | Protected | — |
| +44 1277484 | Protected | — |
| +44 1277485 | Protected | — |
| +44 1277486 | Protected | — |
| +44 1277487 | Allocated | Spitfire Network Services Limited |
| +44 1277488 | Protected | — |
| +44 1277489 | Protected | — |
| +44 1277490 | Allocated | Resilient Limited |
| +44 1277491 | Allocated | Resilient Limited |
| +44 1277492 | Protected | — |
| +44 1277493 | Protected | — |
| +44 1277494 | Protected | — |
| +44 1277495 | Protected | — |
| +44 1277496 | Protected | — |
| +44 1277497 | Protected | — |
| +44 1277498 | Protected | — |
| +44 1277499 | Allocated | Resilient Limited |
| +44 1277500 | Allocated | TalkTalk Communications Limited |
| +44 1277501 | Protected | — |
| +44 1277502 | Allocated | Localphone Limited |
| +44 1277503 | Allocated | Voiceflex Limited |
| +44 1277504 | Allocated | Orange Business Holdings UK Limited |
| +44 1277505 | Allocated | (AQ) LIMITED |
| +44 1277506 | Allocated | VoIP-Un Limited |
| +44 1277507 | Allocated | Digital Space Group Limited |
| +44 1277508 | Allocated | GCI Network Solutions Limited |
| +44 1277509 | Allocated | Voxbone SA |
| +44 1277510 | Allocated | Telecom2 Limited |
| +44 1277511 | Allocated | Net-Work Internet Ltd |
| +44 1277512 | Allocated | Redcentric Solutions Limited |
| +44 1277513 | Allocated | Nodemax Limited |
| +44 1277514 | Allocated | TalkTalk Communications Limited |
| +44 1277515 | Allocated | Solutios Limited |
| +44 1277516 | Protected | — |
| +44 1277517 | Allocated | Barritel Limited |
| +44 1277518 | Protected | — |
| +44 1277519 | Quarantined | — |
| +44 1277520 | Protected | — |
| +44 1277521 | Allocated | Mars Communications Limited |
| +44 1277522 | Allocated | Digital Space Group Limited |
| +44 1277523 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1277524 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 1277525 | Allocated | TalkTalk Communications Limited |
| +44 1277526 | Allocated | Telecoms World Limited |
| +44 1277527 | Protected | — |
| +44 1277528 | Allocated | Invade International Ltd |
| +44 1277529 | Quarantined | — |
| +44 1277530 | Allocated | CFL Communications Ltd |
| +44 1277531 | Allocated | TeleWare Group Limited |
| +44 1277532 | Allocated | Vonage Business Limited |
| +44 1277533 | Protected | — |
| +44 1277534 | Allocated | Nexus Telecommunications Limited |
| +44 1277535 | Protected | — |
| +44 1277536 | Allocated | WightFibre Limited |
| +44 1277537 | Allocated | Nuso Cloud UK Limited |
| +44 1277538 | Protected | — |
| +44 1277539 | Allocated | Atomstream Limited |
| +44 1277540 | Protected | — |
| +44 1277541 | Allocated | Digitech Solutions Global Limited |
| +44 1277542 | Allocated | Barritel Limited |
| +44 1277543 | Allocated | Core Telecom Limited |
| +44 1277544 | Allocated | Suretec Systems Ltd |
| +44 1277545 | Allocated | Windsor Telecom Limited |
| +44 1277546 | Allocated | VoiceHost Limited |
| +44 1277547 | Protected | — |
| +44 1277548 | Allocated | Datazero Ltd |
| +44 1277549 | Allocated | Buzz Networks Limited |
| +44 1277550 | Allocated | Phone Co-Op Numbering Limited |
| +44 1277551 | Allocated | Invosys Limited |
| +44 1277552 | Allocated | Orbtalk Limited |
| +44 1277553 | Allocated | Hello Telecom (UK) Limited |
| +44 1277554 | Allocated | Invoco Ltd |
| +44 1277555 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1277556 | Protected | — |
| +44 1277557 | Allocated | Nexbridge Communications Limited |
| +44 1277558 | Protected | — |
| +44 1277559 | Allocated | Minotaur Telecom Limited |
| +44 1277560 | Allocated | TalkTalk Communications Limited |
| +44 1277561 | Allocated | Media Hawk Ltd |
| +44 1277562 | Allocated | Kalnet4U Ltd |
| +44 1277563 | Allocated | BT |
| +44 1277564 | Allocated | Liquid 11 Limited |
| +44 1277565 | Allocated | Fuse 2 Communications Ltd |
| +44 1277566 | Protected | — |
| +44 1277567 | Allocated | Content Guru Limited |
| +44 1277568 | Allocated | Colt Technology Services |
| +44 1277569 | Allocated | XoverX Ltd |
| +44 1277570 | Allocated | I.T Communications Limited |
| +44 1277571 | Allocated | M247 Ltd |
| +44 1277572 | Allocated | YayYay Limited |
| +44 1277573 | Protected | — |
| +44 1277574 | Allocated | Alnitak GmbH |
| +44 1277575 | Allocated | GCI Network Solutions Limited |
| +44 1277576 | Allocated | IOVOX Limited |
| +44 1277577 | Allocated | Redwood Technologies Ltd |
| +44 1277578 | Allocated | Entanet International Ltd |
| +44 1277579 | Protected | — |
| +44 1277580 | Protected | — |
| +44 1277581 | Allocated | Number Services Ltd. |
| +44 1277582 | Allocated | Colt Technology Services |
| +44 1277583 | Allocated | BT |
| +44 1277584 | Allocated | Gamma Telecom Holdings Limited |
| +44 1277585 | Allocated | Adepteo Limited |
| +44 1277586 | Allocated | BT |
Related lookups
- 01708 Romford10 km away
- 01268 Basildon12 km away
- 01375 Grays Thurrock15 km away
- 01245 Chelmsford17 km away
- BT27 allocated blocks on 01277
- Vodafone Ltd (C&W)14 allocated blocks on 01277
- Virgin Media Limited9 allocated blocks on 01277
- All UK towns A–ZDialling codes by town
- More Essex 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 01277
Where is area code 01277?
01277 is Ofcom's Brentwood numbering area, in Essex, East of England England. Its exchange town is in Essex. From abroad, drop the 0 and dial +44 1277.
Do I need to dial 01277 for a local call?
Traditionally not from another 01277 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01277 first always works, and mobiles always need it.
How are 01277 numbers written?
Numbers on 01277 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01277 234 567. From abroad the leading zero is dropped: +44 1277 then the local number.
What was the 01277 area code before?
01277 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 0277. Old signage or stationery showing 0277 refers to the same Brentwood numbers.
Which phone companies hold 01277 numbers?
Ofcom lists 103 providers with allocated blocks on 01277. The largest are BT with 27 of the 185 allocated blocks, Vodafone with 14 of the 185 allocated blocks and Virgin Media Limited with 9 of the 185 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 01277?
By distance between exchange towns, the nearest other codes are 01708 Romford (10 km), 01268 Basildon (12 km), 01375 Grays Thurrock (15 km) and 01245 Chelmsford (17 km).
How do I report a scam call from a 01277 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.