01529 Area Code — Sleaford, Ruskington & Heckington
01529 is the UK dialling code for Sleaford in Lincolnshire, also serving Ruskington, Heckington and Leasingham, allocated by Ofcom under the National Telephone Numbering Plan. Our database has tracked 126 distinct 01529 numbers across 136 public lookups.
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Quick facts
Area code
01529
Location
Sleaford
County
Lincolnshire
Region
East Midlands
Number type
Geographic landline
Number format
01529 XXX XXX
Operators serving
8+
Call cost
Standard rate
About the 01529 dialling code
01529 is the UK geographic dialling code for Sleaford, allocated by Ofcom under the National Telephone Numbering Plan. It is used by landlines — and increasingly VoIP lines — registered to the Sleaford area.
A full Sleaford number is normally written as 01529 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 01529 number no longer guarantees the caller is physically in Sleaford. Fraudsters also "spoof" local codes like 01529 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 01529 dialling area
The marker shows Sleaford; the shaded circle is an approximate indication of the area the 01529 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 01529
Settlements in and around the Sleaford dialling area that typically use 01529 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 01529 from abroad
From outside the UK, dial your international access prefix, then the UK country code 44, then 1529 (the area code without its leading zero) and the local number.
| Calling from | Dial |
|---|---|
| United States & Canada | 011 44 1529 … |
| Europe / most of the world | 00 44 1529 … |
| Australia | 0011 44 1529 … |
| Any mobile phone | +44 1529 … |
History of the 01529 code
The code was 0529 until PhONEday, 16 April 1995, when a "1" was inserted after the leading zero to create 01529.
Top searched 01529 numbers
These are the 01529 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 |
|---|---|---|
| 01529 416326 | 4 | 2 Jul 2026 |
| 01529 240836 | 2 | 6 Jul 2026 |
| 01529 668900 | 2 | 5 Jul 2026 |
| 01529 404616 | 2 | 28 Jun 2026 |
| 01529 488403 | 2 | 27 Jun 2026 |
| 01529 404587 | 2 | 24 Jun 2026 |
| 01529 248220 | 2 | 11 Jun 2026 |
| 01529 660525 | 2 | 3 Jun 2026 |
| 01529 305757 | 1 | 9 Jul 2026 |
| 01529 404597 | 1 | 8 Jul 2026 |
| 01529 306820 | 1 | 7 Jul 2026 |
| 01529 716998 | 1 | 3 Jul 2026 |
| 01529 404595 | 1 | 1 Jul 2026 |
| 01529 668933 | 1 | 29 Jun 2026 |
| 01529 461352 | 1 | 29 Jun 2026 |
| 01529 701598 | 1 | 29 Jun 2026 |
| 01529 461343 | 1 | 29 Jun 2026 |
| 01529 701603 | 1 | 29 Jun 2026 |
| 01529 668929 | 1 | 29 Jun 2026 |
| 01529 416352 | 1 | 29 Jun 2026 |
Is a call from 01529 safe?
Most 01529 calls are ordinary local calls from Sleaford homes and businesses. The main risk to be aware of is "neighbour spoofing", where a scammer fakes a local 01529 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 01529 (Sleaford) number from outside the UK, drop the leading zero and dial +44 1529 followed by the local number.
Operators serving Sleaford
These UK communications providers have been allocated 01529 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 | 11 |
| Vodafone Ltd (C&W) | 9 |
| Sky UK Limited | 3 |
| TalkTalk Communications Limited | 3 |
| Fuse 2 Communications Ltd | 2 |
| Digital Space Group Limited | 2 |
| GCI Network Solutions Limited | 2 |
| Linear Telecoms Limited | 1 |
Ofcom number ranges on 01529
Ofcom's National Numbering Plan lists 424 number blocks under 01529, of which 113 are allocated to 88 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) |
|---|---|---|
0152920… | Allocated | Net-Work Internet Ltd |
01529210… | Allocated | Linear Telecoms Limited |
01529211… | Allocated | Alnitak GmbH |
01529212… | Allocated | Number Services Ltd. |
0152922… | Allocated | BT |
0152924… | Allocated | BT |
01529250… | Allocated | Vodafone Ltd (C&W) |
01529251… | Allocated | Vodafone Ltd (C&W) |
01529252… | Allocated | Vodafone Ltd (C&W) |
01529253… | Allocated | Vodafone Ltd (C&W) |
01529256… | Allocated | Vodafone Ltd (C&W) |
01529257… | Allocated | Vodafone Ltd (C&W) |
Showing 12 of 113 allocated blocks. Source: Ofcom telephone numbering data, updated weekly.
How to block and report 01529 spam calls
Block or report 01529
- You can block 01529 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 01529 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 01529 code
Where is the 01529 area code?
The 01529 area code is allocated by Ofcom to Sleaford 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 Ruskington, Heckington, Leasingham and nearby villages.
Is 01529 always a Sleaford number?
Numbers with the 01529 prefix were originally allocated by Ofcom to Sleaford. 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 Sleaford.
How do I block 01529 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 01529 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 01529 call cost?
Calls to UK 01529 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 Sleaford — useful when a caller is nearby but outside the 01529 boundary.
Living in or moving to Sleaford?
Our free postcode reports cover house prices, crime, broadband and schools for the districts around Sleaford.
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.