UK area code
01855 area code — Ballachulish
01855 is Ofcom’s Ballachulish numbering area, in Highland, Scotland. 78 phone companies hold its 94 allocated number blocks. Its numbers are written like 01855 234 567. The nearest other codes are 01397 Fort William (16 km) and 01967 Strontian (27 km).
01855 at a glance
- Ofcom area name
- Ballachulish
- Council area
- Highland
- Country
- Scotland
- Number format
- 01855 234 567 (4+6)
- Local calls
- Full number recommended
- Current code since
- 1995 (previously 0855)
- Allocated blocks
- 94 of 460 (20%) across 78 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 01855 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.
01855 history and number format
Number format: Numbers on 01855 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01855 234 567.
Before 1995: 01855 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 0855.
Local dialling: Traditionally not from another 01855 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01855 first always works, and mobiles always need it.
Allocation record: the oldest number block still visible on 01855 was allocated on 11 August 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 01855 number rings (see the weekly numbering changelog for every new allocation.)
Phone companies holding 01855 numbers
Every Ofcom range holder with blocks on 01855, 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 |
|---|---|---|---|---|
| Gamma Telecom Holdings Limited | 8 | 8 | 6 February 2013 | 6 February 2013 |
| BT | 7 | 7 | 11 August 1994 | 2 July 2014 |
| Digital Space Group Limited | 2 | 2 | 23 May 2008 | 15 March 2016 |
| Fuse 2 Communications Ltd | 2 | 2 | 3 July 2017 | 22 January 2024 |
| TalkTalk Communications Limited | 2 | 2 | 20 January 2012 | 20 January 2012 |
| (AQ) LIMITED | 1 | 1 | 26 September 2012 | 26 September 2012 |
| 24 Seven Cloud Communications Ltd | 1 | 1 | 13 January 2020 | 13 January 2020 |
| 8x8 Communications UK Limited | 1 | 1 | 18 April 2012 | 18 April 2012 |
| AQL Wholesale Ltd | 1 | 1 | 3 January 2008 | 3 January 2008 |
| Adepteo Limited | 1 | 1 | 29 November 2016 | 29 November 2016 |
| Alnitak GmbH | 1 | 1 | 20 September 2017 | 20 September 2017 |
| Andrews & Arnold (Numbers) Ltd | 1 | 1 | 2 April 2009 | 2 April 2009 |
| Atomstream Limited | 1 | 1 | 12 April 2010 | 12 April 2010 |
| Barritel Limited | 1 | 1 | 2 October 2006 | 2 October 2006 |
| Belgacom International Carrier Services SA | 1 | 1 | 23 March 2021 | 23 March 2021 |
| Bicom Systems EURL | 1 | 1 | 2 March 2012 | 2 March 2012 |
| CFL Communications Ltd | 1 | 1 | 17 July 2009 | 17 July 2009 |
| Colt Technology Services | 1 | 1 | 7 July 2016 | 7 July 2016 |
| 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 | 18 January 2019 | 18 January 2019 |
| DRD Communications Limited | 1 | 1 | 5 October 2023 | 5 October 2023 |
| Dial 9 Communications Limited | 1 | 1 | 8 January 2020 | 8 January 2020 |
| Digitech Solutions Global Limited | 1 | 1 | 22 June 2012 | 22 June 2012 |
| EVE CONNECT LTD | 1 | 1 | 22 June 2022 | 22 June 2022 |
| Flextel Limited | 1 | 1 | 26 October 2005 | 26 October 2005 |
| GCI Network Solutions Limited | 1 | 1 | 22 December 2023 | 22 December 2023 |
| Hello Telecom (UK) Limited | 1 | 1 | 24 November 2011 | 24 November 2011 |
| I.T Communications Limited | 1 | 1 | 20 November 2015 | 20 November 2015 |
| ICC Networks Ltd | 1 | 1 | 18 April 2012 | 18 April 2012 |
Showing the 30 largest of 78 holders.
All number blocks on 01855first 200 of 460, by prefix
| Prefix | Status | Range holder |
|---|---|---|
| +44 185500 | Protected | — |
| +44 185501 | Protected | — |
| +44 185502 | Protected | — |
| +44 185503 | Protected | — |
| +44 185504 | Protected | — |
| +44 185505 | Protected | — |
| +44 185506 | Protected | — |
| +44 185507 | Protected | — |
| +44 185508 | Protected | — |
| +44 185509 | Protected | — |
| +44 185510 | Protected | — |
| +44 185511 | Protected | — |
| +44 185512 | Protected | — |
| +44 185513 | Protected | — |
| +44 185514 | Protected | — |
| +44 185515 | Protected | — |
| +44 185516 | Protected | — |
| +44 185517 | Protected | — |
| +44 185518 | Protected | — |
| +44 185519 | Protected | — |
| +44 1855200 | Protected | — |
| +44 1855201 | Protected | — |
| +44 1855202 | Protected | — |
| +44 1855203 | Protected | — |
| +44 1855204 | Protected | — |
| +44 1855205 | Protected | — |
| +44 1855206 | Protected | — |
| +44 1855207 | Protected | — |
| +44 1855208 | Protected | — |
| +44 1855209 | Protected | — |
| +44 185521 | Allocated | TelNG Limited |
| +44 185522 | Allocated | Voiceflex Limited |
| +44 185523 | Allocated | (AQ) LIMITED |
| +44 185524 | Protected | — |
| +44 185525 | Allocated | Localphone Limited |
| +44 185526 | Allocated | VoIP-Un Limited |
| +44 185527 | Allocated | AQL Wholesale Ltd |
| +44 1855280 | Protected | — |
| +44 1855281 | Protected | — |
| +44 1855282 | Protected | — |
| +44 1855283 | Protected | — |
| +44 1855284 | Protected | — |
| +44 1855285 | Protected | — |
| +44 1855286 | Protected | — |
| +44 1855287 | Protected | — |
| +44 1855288 | Allocated | TalkTalk Communications Limited |
| +44 1855289 | Allocated | TalkTalk Communications Limited |
| +44 1855290 | Protected | — |
| +44 1855291 | Protected | — |
| +44 1855292 | Protected | — |
| +44 1855293 | Protected | — |
| +44 1855294 | Protected | — |
| +44 1855295 | Protected | — |
| +44 1855296 | Protected | — |
| +44 1855297 | Allocated | Digital Space Group Limited |
| +44 1855298 | Protected | — |
| +44 1855299 | Protected | — |
| +44 185530 | Allocated | Redcentric Solutions Limited |
| +44 185531 | Allocated | Telecom2 Limited |
| +44 185532 | Allocated | Digital Space Group Limited |
| +44 185533 | Allocated | Net-Work Internet Ltd |
| +44 185534 | Allocated | Nodemax Limited |
| +44 1855350 | Allocated | Voxbone SA |
| +44 1855351 | Protected | — |
| +44 1855352 | Protected | — |
| +44 1855353 | Protected | — |
| +44 1855354 | Protected | — |
| +44 1855355 | Protected | — |
| +44 1855356 | Protected | — |
| +44 1855357 | Protected | — |
| +44 1855358 | Protected | — |
| +44 1855359 | Protected | — |
| +44 185536 | Protected | — |
| +44 185537 | Allocated | Served Up Limited |
| +44 185538 | Protected | — |
| +44 185539 | Allocated | Solutios Limited |
| +44 185540 | Allocated | BT |
| +44 185541 | Allocated | Magrathea Telecommunications Limited |
| +44 1855420 | Allocated | Linear Telecoms Limited |
| +44 1855421 | Allocated | Internexus Networks Limited |
| +44 1855422 | Allocated | Hello Telecom (UK) Limited |
| +44 1855423 | Allocated | Bicom Systems EURL |
| +44 1855424 | Allocated | Simwood eSMS Limited |
| +44 1855425 | Protected | — |
| +44 1855426 | Allocated | ICC Networks Ltd |
| +44 1855427 | Allocated | 8x8 Communications UK Limited |
| +44 1855428 | Allocated | Invoco Ltd |
| +44 1855429 | Allocated | IOVOX Limited |
| +44 1855430 | Allocated | Gamma Telecom Holdings Limited |
| +44 1855431 | Allocated | Gamma Telecom Holdings Limited |
| +44 1855432 | Allocated | Gamma Telecom Holdings Limited |
| +44 1855433 | Protected | — |
| +44 1855434 | Protected | — |
| +44 1855435 | Allocated | Gamma Telecom Holdings Limited |
| +44 1855436 | Allocated | Gamma Telecom Holdings Limited |
| +44 1855437 | Allocated | Gamma Telecom Holdings Limited |
| +44 1855438 | Allocated | Gamma Telecom Holdings Limited |
| +44 1855439 | Allocated | Gamma Telecom Holdings Limited |
| +44 185544 | Protected | — |
| +44 1855450 | Allocated | Digitech Solutions Global Limited |
| +44 1855451 | Allocated | KCOM Group Ltd |
| +44 1855452 | Free | — |
| +44 1855453 | Allocated | ICUK Computing Services Limited |
| +44 1855454 | Allocated | VOXYONDER NETWORK SERVICES UK LTD |
| +44 1855455 | Allocated | Belgacom International Carrier Services SA |
| +44 1855456 | Free | — |
| +44 1855457 | Free | — |
| +44 1855458 | Free | — |
| +44 1855459 | Free | — |
| +44 185546 | Protected | — |
| +44 1855470 | Protected | — |
| +44 1855471 | Protected | — |
| +44 1855472 | Allocated | DRD Communications Limited |
| +44 1855473 | Protected | — |
| +44 1855474 | Protected | — |
| +44 1855475 | Protected | — |
| +44 1855476 | Protected | — |
| +44 1855477 | Protected | — |
| +44 1855478 | Protected | — |
| +44 1855479 | Protected | — |
| +44 185548 | Allocated | Flextel Limited |
| +44 1855490 | Allocated | Invosys Limited |
| +44 1855491 | Allocated | Orbtalk Limited |
| +44 1855492 | Allocated | EVE CONNECT LTD |
| +44 1855493 | Allocated | Sky UK Limited |
| +44 1855494 | Allocated | IP Voice Networks Ltd |
| +44 1855495 | Allocated | Fuse 2 Communications Ltd |
| +44 1855496 | Allocated | Dial 9 Communications Limited |
| +44 1855497 | Allocated | Vodafone Ltd (C&W) |
| +44 1855498 | Allocated | Zapappi Ltd |
| +44 1855499 | Allocated | Number Services Ltd. |
| +44 185550 | Allocated | Mars Communications Limited |
| +44 185551 | Allocated | Andrews & Arnold (Numbers) Ltd |
| +44 185552 | Quarantined | — |
| +44 185553 | Allocated | Telecoms World Limited |
| +44 185554 | Quarantined | — |
| +44 185555 | Allocated | CFL Communications Ltd |
| +44 185556 | Protected | — |
| +44 185557 | Allocated | Nexus Telecommunications Limited |
| +44 185558 | Protected | — |
| +44 1855590 | Allocated | Atomstream Limited |
| +44 1855591 | Protected | — |
| +44 1855592 | Allocated | VoiceHost Limited |
| +44 1855593 | Protected | — |
| +44 1855594 | Allocated | Telephone Box Limited |
| +44 1855595 | Allocated | Suretec Systems Ltd |
| +44 1855596 | Allocated | Phone Co-Op Numbering Limited |
| +44 1855597 | Protected | — |
| +44 1855598 | Allocated | GCI Network Solutions Limited |
| +44 1855599 | Allocated | Windsor Telecom Limited |
| +44 1855600 | Allocated | INTELLIGENT EXCHANGES LIMITED |
| +44 1855601 | Protected | — |
| +44 1855602 | Allocated | Convergence Group (wireless) Networks Limited |
| +44 1855603 | Allocated | I.T Communications Limited |
| +44 1855604 | Allocated | Inet Telecoms Ltd (Voipfone) |
| +44 1855605 | Allocated | Nexbridge Communications Limited |
| +44 1855606 | Protected | — |
| +44 1855607 | Protected | — |
| +44 1855608 | Protected | — |
| +44 1855609 | Protected | — |
| +44 1855610 | Protected | — |
| +44 1855611 | Protected | — |
| +44 1855612 | Protected | — |
| +44 1855613 | Protected | — |
| +44 1855614 | Protected | — |
| +44 1855615 | Protected | — |
| +44 1855616 | Protected | — |
| +44 1855617 | Protected | — |
| +44 1855618 | Protected | — |
| +44 1855619 | Protected | — |
| +44 1855620 | Protected | — |
| +44 1855621 | Protected | — |
| +44 1855622 | Protected | — |
| +44 1855623 | Protected | — |
| +44 1855624 | Protected | — |
| +44 1855625 | Protected | — |
| +44 1855626 | Protected | — |
| +44 1855627 | Protected | — |
| +44 1855628 | Protected | — |
| +44 1855629 | Protected | — |
| +44 1855630 | Allocated | Ziron Limited |
| +44 1855631 | Protected | — |
| +44 1855632 | Allocated | Kalnet4U Ltd |
| +44 1855633 | Protected | — |
| +44 1855634 | Allocated | Nuso Cloud UK Limited |
| +44 1855635 | Allocated | Minotaur Telecom Limited |
| +44 1855636 | Allocated | Content Guru Limited |
| +44 1855637 | Allocated | Fuse 2 Communications Ltd |
| +44 1855638 | Allocated | Redwood Technologies Ltd |
| +44 1855639 | Allocated | XoverX Ltd |
| +44 1855640 | Protected | — |
| +44 1855641 | Protected | — |
| +44 1855642 | Protected | — |
| +44 1855643 | Protected | — |
| +44 1855644 | Protected | — |
| +44 1855645 | Protected | — |
| +44 1855646 | Protected | — |
| +44 1855647 | Protected | — |
| +44 1855648 | Protected | — |
| +44 1855649 | Protected | — |
Related lookups
- 01397 Fort William16 km away
- 01967 Strontian27 km away
- 01838 Dalmally32 km away
- 01866 Kilchrenan36 km away
- Gamma Telecom Holdings Limited8 allocated blocks on 01855
- BT7 allocated blocks on 01855
- Digital Space Group Limited2 allocated blocks on 01855
- All UK towns A–ZDialling codes by town
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- 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 01855
Where is area code 01855?
01855 is Ofcom's Ballachulish numbering area, in Highland, Scotland. Its exchange town is in Highland. From abroad, drop the 0 and dial +44 1855.
Do I need to dial 01855 for a local call?
Traditionally not from another 01855 landline, but it now depends on your provider: Ofcom stopped requiring providers to offer local (code-free) dialling on 11 March 2022. Dialling 01855 first always works, and mobiles always need it.
How are 01855 numbers written?
Numbers on 01855 use Ofcom's 4+6 format: the 5-digit code (including the leading 0) followed by a 6-digit local number — written like 01855 234 567. From abroad the leading zero is dropped: +44 1855 then the local number.
What was the 01855 area code before?
01855 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 0855. Old signage or stationery showing 0855 refers to the same Ballachulish numbers.
Which phone companies hold 01855 numbers?
Ofcom lists 78 providers with allocated blocks on 01855. The largest are Gamma Telecom Holdings Limited with 8 of the 94 allocated blocks, BT with 7 of the 94 allocated blocks and Digital Space Group Limited with 2 of the 94 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 01855?
By distance between exchange towns, the nearest other codes are 01397 Fort William (16 km), 01967 Strontian (27 km), 01838 Dalmally (32 km) and 01866 Kilchrenan (36 km).
How do I report a scam call from a 01855 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.