01205 Area Code — Boston, Kirton & Fishtoft
01205 is the UK dialling code for Boston in Lincolnshire, also serving Kirton, Fishtoft and Swineshead, allocated by Ofcom under the National Telephone Numbering Plan. Our database has tracked 122 distinct 01205 numbers across 159 public lookups.
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Quick facts
Area code
01205
Location
Boston
County
Lincolnshire
Region
East of England
Number type
Geographic landline
Number format
01205 XXX XXX
Operators serving
8+
Call cost
Standard rate
About the 01205 dialling code
01205 is the UK geographic dialling code for Boston, allocated by Ofcom under the National Telephone Numbering Plan. It is used by landlines — and increasingly VoIP lines — registered to the Boston area.
A full Boston number is normally written as 01205 XXXXXX. You can dial the local part on its own from within the same area, or the full number from anywhere in the UK.
Because of UK number portability and internet calling, a 01205 number no longer guarantees the caller is physically in Boston. Fraudsters also "spoof" local codes like 01205 so an unknown call looks like a nearby business or neighbour — so treat an unexpected call on what is actually said, not on the area code alone.
Map of the 01205 dialling area
The marker shows Boston; the shaded circle is an approximate indication of the area the 01205 code serves — exact Ofcom charging-area boundaries are irregular and don't follow a neat radius.
Map data © OpenStreetMap contributors. View larger map
Areas typically served by 01205
Settlements in and around the Boston dialling area that typically use 01205 numbers. Approximate — Ofcom charging-area boundaries don't follow town or county lines exactly, and properties near a boundary may take a neighbouring code.
Calling 01205 from abroad
From outside the UK, dial your international access prefix, then the UK country code 44, then 1205 (the area code without its leading zero) and the local number.
| Calling from | Dial |
|---|---|
| United States & Canada | 011 44 1205 … |
| Europe / most of the world | 00 44 1205 … |
| Australia | 0011 44 1205 … |
| Any mobile phone | +44 1205 … |
History of the 01205 code
The code was 0205 until PhONEday, 16 April 1995, when a "1" was inserted after the leading zero to create 01205.
Top searched 01205 numbers
These are the 01205 numbers most-looked-up by visitors to our number checker. Click any number to see its full lookup page with risk-level, range holder, and community reports.
| Number | Searches | Last looked up |
|---|---|---|
| 01205 632884 | 9 | 26 Jun 2026 |
| 01205 337658 | 5 | 25 Jun 2026 |
| 01205 319238 | 4 | 3 Jul 2026 |
| 01205 363634 | 4 | 10 Jun 2026 |
| 01205 314432 | 3 | 10 Jul 2026 |
| 01205 350746 | 3 | 9 Jul 2026 |
| 01205 331821 | 3 | 4 Jul 2026 |
| 01205 319236 | 3 | 30 Jun 2026 |
| 01205 337663 | 2 | 10 Jul 2026 |
| 01205 337662 | 2 | 9 Jul 2026 |
| 01205 500023 | 2 | 6 Jul 2026 |
| 01205 312930 | 2 | 6 Jul 2026 |
| 01205 875719 | 2 | 5 Jul 2026 |
| 01205 540203 | 2 | 3 Jul 2026 |
| 01205 837077 | 2 | 2 Jul 2026 |
| 01205 500019 | 2 | 1 Jul 2026 |
| 01205 606103 | 2 | 23 Jun 2026 |
| 01205 560922 | 2 | 17 Jun 2026 |
| 01205 769086 | 2 | 17 May 2026 |
| 01205 350747 | 1 | 12 Jul 2026 |
Is a call from 01205 safe?
Most 01205 calls are ordinary local calls from Boston homes and businesses. The main risk to be aware of is "neighbour spoofing", where a scammer fakes a local 01205 prefix so you are more likely to answer. Never share bank details, passwords or one-time security codes with an unexpected caller, even when the number looks local — hang up and call the organisation back on a number you have verified yourself.
To call a 01205 (Boston) number from outside the UK, drop the leading zero and dial +44 1205 followed by the local number.
Operators serving Boston
These UK communications providers have been allocated 01205 number blocks by Ofcom. The number of blocks per operator gives a rough sense of how widely each provider serves this area.
| Provider (Ofcom-allocated) | Allocated blocks |
|---|---|
| BT | 19 |
| Sky UK Limited | 6 |
| TalkTalk Communications Limited | 6 |
| GCI Network Solutions Limited | 4 |
| Gamma Telecom Holdings Limited | 3 |
| Digital Space Group Limited | 3 |
| Vodafone Ltd (C&W) | 2 |
| Fuse 2 Communications Ltd | 2 |
Ofcom number ranges on 01205
Ofcom's National Numbering Plan lists 406 number blocks under 01205, of which 138 are allocated to 99 communications providers. The first allocated blocks are shown below — look up any full number with the number checker to see its exact range holder.
| Number block | Status | Range holder (Ofcom-allocated) |
|---|---|---|
0120520… | Allocated | AQL Wholesale Ltd |
01205210… | Allocated | Linear Telecoms Limited |
01205211… | Allocated | Minotaur Telecom Limited |
01205212… | Allocated | Simwood eSMS Limited |
01205213… | Allocated | API Telecom Limited |
01205214… | Allocated | ICC Networks Ltd |
01205216… | Allocated | IOVOX Limited |
01205217… | Allocated | Hello Telecom (UK) Limited |
01205218… | Allocated | Bicom Systems EURL |
01205219… | Allocated | Ziron Limited |
0120522… | Allocated | GCI Network Solutions Limited |
0120525… | Allocated | IV Response Limited |
Showing 12 of 138 allocated blocks. Source: Ofcom telephone numbering data, updated weekly.
How to block and report 01205 spam calls
Block or report 01205
- You can block 01205 directly from your recent-calls list on iPhone or Android, and forward scam texts free to 7726.
- Scam or fraud calls should be reported to Action Fraud (0300 123 2040) or Police Scotland (101); persistent marketing calls to the ICO / TPS.
Full step-by-step instructions for every phone, network-level blocking and all UK reporting routes are in our guide: How to block and report unwanted calls in the UK.
How to stop unwanted calls for good
Blocking 01205 numbers stops that one number, but determined nuisance callers simply switch numbers. Silencing unknown callers, enabling your network's free spam shield and registering with the TPS cut the volume across the board — our canonical guide walks through each step: How to block and report unwanted calls in the UK.
Frequently asked questions about the 01205 code
Where is the 01205 area code?
The 01205 area code is allocated by Ofcom to Boston in Lincolnshire, United Kingdom. It is a geographic UK landline dialling code under the National Telephone Numbering Plan. The surrounding dialling area also takes in Kirton, Fishtoft, Swineshead and nearby villages.
Is 01205 always a Boston number?
Numbers with the 01205 prefix were originally allocated by Ofcom to Boston. With UK number portability and VoIP allowing geographic relocation while keeping the same number, the call origin can differ from the original area, but the prefix's official assigned location remains Boston.
How do I block 01205 spam calls?
On iPhone, tap the (i) next to the number in Recents and choose Block this Caller. On Android, long-press the number in Recents and choose Block. To prevent unknown 01205 numbers ringing, enable Settings → Phone → Silence Unknown Callers (iPhone) or your dialler's spam filter (Android). Forward spam texts to 7726 free of charge.
How much does a 01205 call cost?
Calls to UK 01205 geographic numbers are charged at your provider's standard rate and are usually included in inclusive minutes on any modern landline or mobile plan.
Neighbouring dialling codes
Codes covering areas around Boston — useful when a caller is nearby but outside the 01205 boundary.
Living in or moving to Boston?
Our free postcode reports cover house prices, crime, broadband and schools for the districts around Boston.
Check another UK number
Have the full 10- or 11-digit number? The UK Phone Number Checker shows the Ofcom range holder, risk level, and any community reports for that specific number.