UK area code
01245 — Chelmsford
01245 is the UK geographic dialling code for Chelmsford. It is a landline code: UK mobile numbers begin 07 and have no area code.
How to dial 01245
- From the UK
- 01245 123456
- From abroad
- +44 1245 123456
- Within the area
- 123456 — the local part alone usually works
Places on 01245
Ofcom lists Chelmsford as the area for this code.
Postcode districts in the 01245 area
Approximate. Postcode boundaries and telephone-area boundaries are drawn by different bodies and don't line up exactly — this is reliable at town level and wrong at the margins where a district crosses a boundary.
Calling Chelmsford from a 01245 number
People answer a local number far more often than an unknown one. Local presence gives a floor a number in the area it's ringing, so a call to Chelmsford shows a 01245 number rather than one from wherever the business happens to sit. It's an add-on from £49 a month; whether a given code is available depends on what carriers hold at the time, so it's worth asking rather than assuming.
01245 questions
Where is the 01245 area code?
01245 is the UK geographic dialling code for Chelmsford. It is a landline code — UK mobile numbers start 07 and have no area code.
How do I dial 01245 from within the UK?
Dial the full number including the leading zero: 01245 followed by the local number. From a landline inside the 01245 area you can usually dial the local part on its own, though including the code always works.
How do I dial a 01245 number from abroad?
Dial your exit code, then 44, then 1245 without the leading zero, then the local number. So 01245 123456 becomes +44 1245 123456.