01223 Area Code — Cambridge, Sawston & Waterbeach
01223 is the UK dialling code for Cambridge in Cambridgeshire, also serving Sawston, Waterbeach and Fulbourn, allocated by Ofcom under the National Telephone Numbering Plan. Our database has tracked 494 distinct 01223 numbers across 769 public lookups.
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Quick facts
Area code
01223
Location
Cambridge
County
Cambridgeshire
Region
East of England
Number type
Geographic landline
Number format
01223 XXX XXX
Operators serving
8+
Call cost
Standard rate
About the 01223 dialling code
01223 is the UK geographic dialling code for Cambridge, allocated by Ofcom under the National Telephone Numbering Plan. It is used by landlines — and increasingly VoIP lines — registered to the Cambridge area.
A full Cambridge number is normally written as 01223 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 01223 number no longer guarantees the caller is physically in Cambridge. Fraudsters also "spoof" local codes like 01223 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 01223 dialling area
The marker shows Cambridge; the shaded circle is an approximate indication of the area the 01223 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 01223
Settlements in and around the Cambridge dialling area that typically use 01223 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 01223 from abroad
From outside the UK, dial your international access prefix, then the UK country code 44, then 1223 (the area code without its leading zero) and the local number.
| Calling from | Dial |
|---|---|
| United States & Canada | 011 44 1223 … |
| Europe / most of the world | 00 44 1223 … |
| Australia | 0011 44 1223 … |
| Any mobile phone | +44 1223 … |
History of the 01223 code
The code was 0223 until PhONEday, 16 April 1995, when a "1" was inserted after the leading zero to create 01223.
In the letter-dialling era the code had the mnemonic CA3 — on an old rotary dial, the letters CA (from Cambridge) sat on the same holes as the digits 223, so subscribers literally dialled the start of the town's name.
Top searched 01223 numbers
These are the 01223 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 |
|---|---|---|
| 01223 483626 | 17 | 6 Jul 2026 |
| 01223 931009 | 16 | 9 Jul 2026 |
| 01223 987024 | 15 | 11 Jul 2026 |
| 01223 789378 | 11 | 6 Jul 2026 |
| 01223 931442 | 9 | 11 Jul 2026 |
| 01223 958042 | 9 | 9 Jul 2026 |
| 01223 344571 | 7 | 10 Jul 2026 |
| 01223 483623 | 7 | 10 Jul 2026 |
| 01223 987014 | 7 | 7 Jul 2026 |
| 01223 762160 | 7 | 5 Jul 2026 |
| 01223 930096 | 7 | 4 Jul 2026 |
| 01223 751170 | 7 | 4 Jul 2026 |
| 01223 734028 | 7 | 2 Jul 2026 |
| 01223 987023 | 7 | 2 Jul 2026 |
| 01223 931300 | 7 | 1 Jul 2026 |
| 01223 624831 | 6 | 9 Jul 2026 |
| 01223 082166 | 6 | 9 Jul 2026 |
| 01223 987019 | 6 | 4 Jul 2026 |
| 01223 483625 | 6 | 2 Jul 2026 |
| 01223 254254 | 6 | 1 Jul 2026 |
Is a call from 01223 safe?
Most 01223 calls are ordinary local calls from Cambridge homes and businesses. The main risk to be aware of is "neighbour spoofing", where a scammer fakes a local 01223 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 01223 (Cambridge) number from outside the UK, drop the leading zero and dial +44 1223 followed by the local number.
Operators serving Cambridge
These UK communications providers have been allocated 01223 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 | 180 |
| Gamma Telecom Holdings Limited | 47 |
| Colt Technology Services | 23 |
| Vodafone Ltd (C&W) | 18 |
| Virgin Media Limited | 13 |
| Sky UK Limited | 12 |
| Magrathea Telecommunications Limited | 10 |
| Voxbone SA | 8 |
Ofcom number ranges on 01223
Ofcom's National Numbering Plan lists 514 number blocks under 01223, of which 439 are allocated to 85 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) |
|---|---|---|
01223080… | Allocated | Voxbone SA |
01223081… | Allocated | Voxbone SA |
01223082… | Allocated | Voxbone SA |
01223083… | Allocated | Voxbone SA |
01223084… | Allocated | Voxbone SA |
01223085… | Allocated | Voxbone SA |
0122312… | Allocated | Virgin Media Limited |
0122316… | Allocated | Virgin Media Limited |
0122320… | Allocated | BT |
0122321… | Allocated | BT |
0122322… | Allocated | BT |
01223230… | Allocated | TELNYX UK LIMITED |
Showing 12 of 439 allocated blocks. Source: Ofcom telephone numbering data, updated weekly.
Common scam patterns reported in Cambridge
Categories most-commonly tagged on user-submitted reports for 01223 numbers in our community comments.
- scam — 1 report
How to block and report 01223 spam calls
Block or report 01223
- You can block 01223 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 01223 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 01223 code
Where is the 01223 area code?
The 01223 area code is allocated by Ofcom to Cambridge in Cambridgeshire, United Kingdom. It is a geographic UK landline dialling code under the National Telephone Numbering Plan. The surrounding dialling area also takes in Sawston, Waterbeach, Fulbourn and nearby villages.
Is 01223 always a Cambridge number?
Numbers with the 01223 prefix were originally allocated by Ofcom to Cambridge. 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 Cambridge.
How do I block 01223 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 01223 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 01223 call cost?
Calls to UK 01223 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 Cambridge — useful when a caller is nearby but outside the 01223 boundary.
Living in or moving to Cambridge?
Our free postcode reports cover house prices, crime, broadband and schools for the districts around Cambridge.
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.