UK area code
01933 — Wellingborough
The 01933 dialling code covers Wellingborough in Northamptonshire. Below are the currently-allocated Ofcom number ranges and the Range Holders they are assigned to.
About the 01933 dialling code
01933 is the UK area code for Wellingborough and the surrounding Northamptonshire area, listed in Ofcom’s National Telephone Numbering Plan. When a UK landline calls you and the number begins +44 1933 the originating exchange is most likely physically located in or near Wellingborough. 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 01933 can differ from the Range Holder shown — see Range Holder vs current provider for the full explanation.
To identify a specific 01933 number, paste it into the lookup form above. You will see the Range Holder, the allocation status, the area-code metadata for Wellingborough, and a live AI internet check summarising any public web reports about that exact number — useful when an unfamiliar 01933 caller turns out to be a legitimate local business, a national contact-centre, or a scam.
Range holders on 01933
No Range Holder data is currently loaded for this code. Run the weekly Ofcom ingest to populate.
All allocated ranges on 01933
Showing up to 200 ranges, ordered by prefix.
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Related lookups
FAQs about 01933
What does the 01933 area code cover?
01933 is the UK dialling code for Wellingborough and the wider Northamptonshire area. When you receive a call starting with 01933 from a UK landline, the originating exchange is likely in or near Wellingborough.
Is a 01933 number safe?
Most calls from 01933 are legitimate landlines. Scammers can however spoof any UK area code, so a 01933 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 01933 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.