UK area code
01733 — Peterborough
The 01733 dialling code covers Peterborough in Cambridgeshire. Approximate population of the area: 215,000. Below are the currently-allocated Ofcom number ranges and the Range Holders they are assigned to.
About the 01733 dialling code
01733 is the UK area code for Peterborough and the surrounding Cambridgeshire area, listed in Ofcom’s National Telephone Numbering Plan. When a UK landline calls you and the number begins +44 1733 the originating exchange is most likely physically located in or near Peterborough. 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 01733 can differ from the Range Holder shown — see Range Holder vs current provider for the full explanation.
To identify a specific 01733 number, paste it into the lookup form above. You will see the Range Holder, the allocation status, the area-code metadata for Peterborough, and a live AI internet check summarising any public web reports about that exact number — useful when an unfamiliar 01733 caller turns out to be a legitimate local business, a national contact-centre, or a scam.
Range holders on 01733
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All allocated ranges on 01733
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FAQs about 01733
What does the 01733 area code cover?
01733 is the UK dialling code for Peterborough and the wider Cambridgeshire area. The area has a population of approximately 215,000. When you receive a call starting with 01733 from a UK landline, the originating exchange is likely in or near Peterborough.
Is a 01733 number safe?
Most calls from 01733 are legitimate landlines. Scammers can however spoof any UK area code, so a 01733 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 01733 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.