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01245 who called me? Chelmsford area code
The 01245 dialling code covers Chelmsford. A landline with this code was registered in that area.
- Dialling code
- 01245
- Covers
- Chelmsford
- From abroad
- +44 1245 …
- Local number length
- 6 digits
01245 is the dialling code for Chelmsford and the surrounding area in Essex. See where it is, who uses it and what to do if an unknown 01245 number rings you.
Where is the 01245 area code?
Chelmsford and the villages around it. The code belongs to Essex.
Written in full, a local number looks like 01245 123456. From abroad, dial +44, drop the first 0 and then the rest of the number.
About Chelmsford
Chelmsford is Essex’s county town and became a city in 2012. It is also where Marconi built the world’s first radio factory, so 01245 appears in telecoms and engineering calls.
Got a call from a 01245 number?
A 01245 number tells you roughly where a line is registered, not who is calling. Scammers can spoof any UK number, including local ones, so never rely on the area code alone to judge a caller.
If the caller asks for a PIN, a one-time passcode, remote access to your computer or an urgent payment, hang up and call the organisation back on the number printed on your card or bill. To reduce sales calls, register with the Telephone Preference Service, and report scams to Report Fraud (reportfraud.police.uk, formerly Action Fraud) or by forwarding a text to 7726. Search the full number on this site to see what other people have reported.
Does the code tell you where the caller is?
Not reliably. Modern phone systems let any business display any UK dialling code, and call centres often pick a regional code so the call looks local and you pick up. The code tells you where the line was registered, not where the person sits.
That is why the individual number matters more than the code. If someone has already reported it, you will see it below.
Reported 01245 numbers
Nobody has reported a number from this area yet.