UK area code
01223 — Cambridge
The 01223 dialling code covers Cambridge in Cambridgeshire. Approximate population of the area: 145,000. Below are the currently-allocated Ofcom number ranges and the Range Holders they are assigned to.
About the 01223 dialling code
01223 is the UK area code for Cambridge and the surrounding Cambridgeshire area, listed in Ofcom’s National Telephone Numbering Plan. When a UK landline calls you and the number begins +44 1223 the originating exchange is most likely physically located in or near Cambridge. Numbers in this code are allocated to UK communications providers in 1,000- or 10,000-number blocks; the table below shows which Range Holder Ofcom assigned each block to.
This is the same data Ofcom publishes every Wednesday in the public UK Numbering Data feed. We re-ingest the snapshot weekly, so the allocations you see here are at most seven days old. Because UK numbers are portable, the current carrier of any specific number on 01223 can differ from the Range Holder shown — see Range Holder vs current provider for the full explanation.
To identify a specific 01223 number, paste it into the lookup form above. You will see the Range Holder, the allocation status, the area-code metadata for Cambridge, and a live AI internet check summarising any public web reports about that exact number — useful when an unfamiliar 01223 caller turns out to be a legitimate local business, a national contact-centre, or a scam.
Range holders on 01223
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All allocated ranges on 01223
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Related lookups
FAQs about 01223
What does the 01223 area code cover?
01223 is the UK dialling code for Cambridge and the wider Cambridgeshire area. The area has a population of approximately 145,000. When you receive a call starting with 01223 from a UK landline, the originating exchange is likely in or near Cambridge.
Is a 01223 number safe?
Most calls from 01223 are legitimate landlines. Scammers can however spoof any UK area code, so a 01223 prefix alone doesn't guarantee safety. Use the lookup above to see the Range Holder, then read the AI internet check for behavioural reports.
How many providers operate 01223 number ranges?
Across the 0 ranges currently visible, 0 different Range Holders are listed. The top allocations are typically held by Openreach (BT), Virgin Media O2 and Sky.