UK area code
01883 area code — Caterham
01883 is Ofcom’s Caterham numbering area, in Surrey, South East England. 91 phone companies hold its 161 allocated number blocks. Its numbers are written like 01883 234 567. The nearest other codes are 01737 Redhill (7 km) and 01959 Westerham (11 km).
01883 at a glance
- Ofcom area name
- Caterham
- County
- Surrey
- Council area
- Surrey
- Region
- South East England
- Number format
- 01883 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0883)
- Allocated blocks
- 161 of 442 (36%) across 91 providers
- Newest block
- 26 January 2026 (2 in the last 12 months)
Sources: Ofcom numbering data (weekly) and area-code list, Ofcom Numbering Plan, ONS geography.
If a 01883 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.
01883 history and number format
Number format: Numbers on 01883 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01883 234 567.
Before 1995: 01883 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 0883.
Local dialling: Traditionally not from another 01883 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01883 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01883 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 01883 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01883 numbers
Every Ofcom range holder with blocks on 01883, 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 |
|---|---|---|---|---|
| Vodafone Ltd (C&W) | 19 | 19 | 6 September 2013 | 12 November 2021 |
| BT | 11 | 11 | 15 July 1994 | 19 February 2024 |
| Barritel Limited | 9 | 9 | 16 November 2011 | 16 November 2011 |
| Gamma Telecom Holdings Limited | 8 | 8 | 15 November 2012 | 30 October 2025 |
| Magrathea Telecommunications Limited | 7 | 7 | 17 November 2011 | 17 November 2011 |
| Sky UK Limited | 5 | 5 | 27 June 2013 | 22 December 2020 |
| GCI Network Solutions Limited | 4 | 4 | 2 May 2017 | 26 February 2024 |
| TalkTalk Communications Limited | 4 | 4 | 31 August 2011 | 12 February 2013 |
| Inet Telecoms Ltd (Voipfone) | 3 | 3 | 5 October 2012 | 5 October 2012 |
| Colt Technology Services | 2 | 2 | 18 July 2012 | 14 May 2019 |
| Datazero Ltd | 2 | 2 | 30 October 2012 | 29 April 2019 |
| Digital Space Group Limited | 2 | 2 | 3 June 2008 | 15 March 2016 |
| Fuse 2 Communications Ltd | 2 | 2 | 3 July 2017 | 22 January 2024 |
| IOVOX Limited | 2 | 2 | 4 July 2012 | 23 December 2016 |
| Resilient Limited | 2 | 2 | 12 September 2011 | 12 September 2011 |
| Served Up Limited | 2 | 2 | 1 March 2013 | 1 March 2013 |
| Six Degrees Technology Group Limited | 2 | 2 | 14 January 2020 | 14 January 2020 |
| Virgin Media Limited | 2 | 2 | 6 February 1995 | 8 March 1996 |
| (AQ) LIMITED | 1 | 1 | 26 September 2012 | 26 September 2012 |
| 24 Seven Cloud Communications Ltd | 1 | 1 | 30 September 2019 | 30 September 2019 |
| 8x8 Communications UK Limited | 1 | 1 | 19 April 2012 | 19 April 2012 |
| AQL Wholesale Ltd | 1 | 1 | 3 January 2008 | 3 January 2008 |
| Adepteo Limited | 1 | 1 | 29 November 2016 | 29 November 2016 |
| Andrews & Arnold (Numbers) Ltd | 1 | 1 | 7 September 2011 | 7 September 2011 |
| Atomstream Limited | 1 | 1 | 12 April 2010 | 12 April 2010 |
| Belgacom International Carrier Services SA | 1 | 1 | 14 October 2019 | 14 October 2019 |
| Bicom Systems EURL | 1 | 1 | 2 March 2012 | 2 March 2012 |
| Bink Networks Ltd | 1 | 1 | 29 March 2023 | 29 March 2023 |
| CFL Communications Ltd | 1 | 1 | 21 July 2009 | 21 July 2009 |
| Calltracks Limited | 1 | 1 | 20 September 2013 | 20 September 2013 |
Showing the 30 largest of 91 holders.
All number blocks on 01883first 200 of 442, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 188300 | Protected | — |
| +44 188301 | Protected | — |
| +44 188302 | Protected | — |
| +44 188303 | Protected | — |
| +44 188304 | Protected | — |
| +44 188305 | Protected | — |
| +44 188306 | Protected | — |
| +44 188307 | Protected | — |
| +44 188308 | Protected | — |
| +44 188309 | Protected | — |
| +44 188310 | Protected | — |
| +44 188311 | Protected | — |
| +44 1883120 | Allocated | Vodafone Ltd (C&W) |
| +44 1883121 | Allocated | Vodafone Ltd (C&W) |
| +44 1883122 | Allocated | Vodafone Ltd (C&W) |
| +44 1883123 | Allocated | Vodafone Ltd (C&W) |
| +44 1883124 | Allocated | Vodafone Ltd (C&W) |
| +44 1883125 | Protected | — |
| +44 1883126 | Protected | — |
| +44 1883127 | Protected | — |
| +44 1883128 | Protected | — |
| +44 1883129 | Allocated | Vodafone Ltd (C&W) |
| +44 188313 | Protected | — |
| +44 188314 | Protected | — |
| +44 188315 | Protected | — |
| +44 188316 | Protected | — |
| +44 188317 | Protected | — |
| +44 188318 | Protected | — |
| +44 188319 | Protected | — |
| +44 188320 | Allocated | (AQ) LIMITED |
| +44 188321 | Allocated | AQL Wholesale Ltd |
| +44 188322 | Allocated | VoIP-Un Limited |
| +44 188323 | Allocated | Entanet International Ltd |
| +44 188324 | Allocated | Redcentric Solutions Limited |
| +44 188325 | Allocated | Digital Space Group Limited |
| +44 1883260 | Allocated | Net-Work Internet Ltd |
| +44 1883261 | Protected | — |
| +44 1883262 | Protected | — |
| +44 1883263 | Protected | — |
| +44 1883264 | Protected | — |
| +44 1883265 | Protected | — |
| +44 1883266 | Protected | — |
| +44 1883267 | Protected | — |
| +44 1883268 | Protected | — |
| +44 1883269 | Protected | — |
| +44 1883270 | Protected | — |
| +44 1883271 | Protected | — |
| +44 1883272 | Protected | — |
| +44 1883273 | Protected | — |
| +44 1883274 | Protected | — |
| +44 1883275 | Protected | — |
| +44 1883276 | Protected | — |
| +44 1883277 | Allocated | Digital Space Group Limited |
| +44 1883278 | Protected | — |
| +44 1883279 | Protected | — |
| +44 188328 | Allocated | Voiceflex Limited |
| +44 188329 | Allocated | Nationwide Telephone Assistance Ltd |
| +44 188330 | Allocated | BT |
| +44 1883310 | Allocated | Vodafone Ltd (C&W) |
| +44 1883311 | Allocated | Vodafone Ltd (C&W) |
| +44 1883312 | Protected | — |
| +44 1883313 | Protected | — |
| +44 1883314 | Protected | — |
| +44 1883315 | Allocated | Vodafone Ltd (C&W) |
| +44 1883316 | Allocated | Vodafone Ltd (C&W) |
| +44 1883317 | Protected | — |
| +44 1883318 | Protected | — |
| +44 1883319 | Allocated | Vodafone Ltd (C&W) |
| +44 1883320 | Protected | — |
| +44 1883321 | Protected | — |
| +44 1883322 | Protected | — |
| +44 1883323 | Protected | — |
| +44 1883324 | Protected | — |
| +44 1883325 | Protected | — |
| +44 1883326 | Protected | — |
| +44 1883327 | Protected | — |
| +44 1883328 | Protected | — |
| +44 1883329 | Protected | — |
| +44 188333 | Allocated | BT |
| +44 188334 | Allocated | BT |
| +44 188335 | Allocated | GCI Network Solutions Limited |
| +44 1883360 | Protected | — |
| +44 1883361 | Protected | — |
| +44 1883362 | Protected | — |
| +44 1883363 | Protected | — |
| +44 1883364 | Protected | — |
| +44 1883365 | Protected | — |
| +44 1883366 | Protected | — |
| +44 1883367 | Protected | — |
| +44 1883368 | Protected | — |
| +44 1883369 | Protected | — |
| +44 188337 | Allocated | Virgin Media Limited |
| +44 188338 | Allocated | Virgin Media Limited |
| +44 1883390 | Protected | — |
| +44 1883391 | Protected | — |
| +44 1883392 | Protected | — |
| +44 1883393 | Protected | — |
| +44 1883394 | Protected | — |
| +44 1883395 | Protected | — |
| +44 1883396 | Protected | — |
| +44 1883397 | Protected | — |
| +44 1883398 | Protected | — |
| +44 1883399 | Protected | — |
| +44 188340 | Allocated | Nodemax Limited |
| +44 1883410 | Allocated | IOVOX Limited |
| +44 1883411 | Protected | — |
| +44 1883412 | Allocated | Sky UK Limited |
| +44 1883413 | Allocated | Number Services Ltd. |
| +44 1883414 | Allocated | Adepteo Limited |
| +44 1883415 | Allocated | IP Voice Networks Ltd |
| +44 1883416 | Allocated | Zapappi Ltd |
| +44 1883417 | Allocated | NFON UK Ltd |
| +44 1883418 | Allocated | TalkTalk Communications Limited |
| +44 1883419 | Allocated | Fuse 2 Communications Ltd |
| +44 1883420 | Allocated | Voxbone SA |
| +44 1883421 | Protected | — |
| +44 1883422 | Protected | — |
| +44 1883423 | Protected | — |
| +44 1883424 | Protected | — |
| +44 1883425 | Protected | — |
| +44 1883426 | Protected | — |
| +44 1883427 | Protected | — |
| +44 1883428 | Protected | — |
| +44 1883429 | Protected | — |
| +44 188343 | Protected | — |
| +44 188344 | Protected | — |
| +44 188345 | Allocated | Solutios Limited |
| +44 1883460 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1883461 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1883462 | Protected | — |
| +44 1883463 | Protected | — |
| +44 1883464 | Protected | — |
| +44 1883465 | Protected | — |
| +44 1883466 | Protected | — |
| +44 1883467 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1883468 | Protected | — |
| +44 1883469 | Protected | — |
| +44 188347 | Allocated | Mars Communications Limited |
| +44 188348 | Quarantined | — |
| +44 1883490 | Protected | — |
| +44 1883491 | Protected | — |
| +44 1883492 | Protected | — |
| +44 1883493 | Protected | — |
| +44 1883494 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 1883495 | Protected | — |
| +44 1883496 | Protected | — |
| +44 1883497 | Protected | — |
| +44 1883498 | Protected | — |
| +44 1883499 | Protected | — |
| +44 1883500 | Allocated | Sky UK Limited |
| +44 1883501 | Protected | — |
| +44 1883502 | Protected | — |
| +44 1883503 | Protected | — |
| +44 1883504 | Protected | — |
| +44 1883505 | Protected | — |
| +44 1883506 | Protected | — |
| +44 1883507 | Protected | — |
| +44 1883508 | Protected | — |
| +44 1883509 | Protected | — |
| +44 188351 | Allocated | Invade International Ltd |
| +44 188352 | Allocated | Telecoms World Limited |
| +44 188353 | Protected | — |
| +44 188354 | Allocated | CFL Communications Ltd |
| +44 188355 | Quarantined | — |
| +44 188356 | Allocated | Nexus Telecommunications Limited |
| +44 1883570 | Allocated | Atomstream Limited |
| +44 1883571 | Allocated | Red Matter Limited |
| +44 1883572 | Allocated | Calltracks Limited |
| +44 1883573 | Allocated | Windsor Telecom Limited |
| +44 1883574 | Allocated | Core Telecom Limited |
| +44 1883575 | Allocated | Suretec Systems Ltd |
| +44 1883576 | Allocated | VoiceHost Limited |
| +44 1883577 | Allocated | Telappliant Limited |
| +44 1883578 | Allocated | Telephone Box Limited |
| +44 1883579 | Protected | — |
| +44 1883580 | Allocated | Phone Co-Op Numbering Limited |
| +44 1883581 | Protected | — |
| +44 1883582 | Allocated | Invosys Limited |
| +44 1883583 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1883584 | Allocated | Nexbridge Communications Limited |
| +44 1883585 | Allocated | Orbtalk Limited |
| +44 1883586 | Protected | — |
| +44 1883587 | Allocated | Internexus Networks Limited |
| +44 1883588 | Protected | — |
| +44 1883589 | Allocated | 24 Seven Cloud Communications Ltd |
| +44 1883590 | Allocated | Bicom Systems EURL |
| +44 1883591 | Allocated | Hello Telecom (UK) Limited |
| +44 1883592 | Allocated | Simwood eSMS Limited |
| +44 1883593 | Allocated | 8x8 Communications UK Limited |
| +44 1883594 | Allocated | ICC Networks Ltd |
| +44 1883595 | Allocated | Invoco Ltd |
| +44 1883596 | Allocated | IOVOX Limited |
| +44 1883597 | Allocated | Colt Technology Services |
| +44 1883598 | Allocated | Ziron Limited |
| +44 1883599 | Allocated | Telecom2 Limited |
| +44 188360 | Allocated | Flextel Limited |
| +44 1883610 | Protected | — |
| +44 1883611 | Protected | — |
| +44 1883612 | Protected | — |
| +44 1883613 | Protected | — |
Related lookups
- 01737 Redhill7 km away
- 01959 Westerham11 km away
- 01689 Orpington16 km away
- 01306 Dorking18 km away
- Vodafone Ltd (C&W)19 allocated blocks on 01883
- BT11 allocated blocks on 01883
- Barritel Limited9 allocated blocks on 01883
- All UK towns A–ZDialling codes by town
- More Surrey 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 01883
Where is area code 01883?
01883 is Ofcom's Caterham numbering area, in Surrey, South East England. Its exchange town is in Surrey. From abroad, drop the 0 and dial +44 1883.
Do I need to dial 01883 for a local call?
Traditionally not from another 01883 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01883 first always works, and mobiles always need it.
How are 01883 numbers written?
Numbers on 01883 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01883 234 567. From abroad the leading zero is dropped: +44 1883 then the local number.
What was the 01883 area code before?
01883 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 0883. Old signage or stationery showing 0883 refers to the same Caterham numbers.
Which phone companies hold 01883 numbers?
Ofcom lists 91 providers with allocated blocks on 01883. The largest are Vodafone with 19 of the 161 allocated blocks, BT with 11 of the 161 allocated blocks and Barritel Limited with 9 of the 161 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 01883?
By distance between exchange towns, the nearest other codes are 01737 Redhill (7 km), 01959 Westerham (11 km), 01689 Orpington (16 km) and 01306 Dorking (18 km).
How do I report a scam call from a 01883 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.