UK area code
01246 — Chesterfield
The 01246 dialling code covers Chesterfield in Derbyshire. Below are the currently-allocated Ofcom number ranges and the Range Holders they are assigned to.
About the 01246 dialling code
01246 is the UK area code for Chesterfield and the surrounding Derbyshire area, listed in Ofcom’s National Telephone Numbering Plan. When a UK landline calls you and the number begins +44 1246 the originating exchange is most likely physically located in or near Chesterfield. 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 01246 can differ from the Range Holder shown — see Range Holder vs current provider for the full explanation.
To identify a specific 01246 number, paste it into the lookup form above. You will see the Range Holder, the allocation status, the area-code metadata for Chesterfield, and a live AI internet check summarising any public web reports about that exact number — useful when an unfamiliar 01246 caller turns out to be a legitimate local business, a national contact-centre, or a scam.
Range holders on 01246
No Range Holder data is currently loaded for this code. Run the weekly Ofcom ingest to populate.
All allocated ranges on 01246
Showing up to 200 ranges, ordered by prefix.
No ranges loaded yet.
Related lookups
FAQs about 01246
What does the 01246 area code cover?
01246 is the UK dialling code for Chesterfield and the wider Derbyshire area. When you receive a call starting with 01246 from a UK landline, the originating exchange is likely in or near Chesterfield.
Is a 01246 number safe?
Most calls from 01246 are legitimate landlines. Scammers can however spoof any UK area code, so a 01246 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 01246 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.