01245 numbers in Chelmsford
01245 is the area code for Chelmsford. Ofcom’s numbering data lists 388 number ranges starting 01245, allocated to 115 providers. The largest holder is BT, with 9% of them.
Who were 01245 ranges given to?
Providers Ofcom allocated these number ranges to.
- Not allocated to a provider140 ranges
- BT36 ranges
- Gamma Telecom Holdings Limited18 ranges
- Sky UK Limited15 ranges
- Virgin Media Limited13 ranges
- Vodafone Ltd (C&W)10 ranges
- TalkTalk Communications Limited8 ranges
- Colt Technology Services7 ranges
- Magrathea Telecommunications Limited6 ranges
- GCI Network Solutions Limited6 ranges
- Lumen Technologies UK Limited5 ranges
- Barritel Limited4 ranges
+ 104 more
Range status
How Ofcom lists the ranges starting 01245.
Allocations by year
Explore by the next digit
Each block below starts 01245. Pick one to narrow it down.
What a 01245 number tells you
What it is
Ordinary landline numbers tied to a place. The area code tells you which dialling area the number was issued for – 0161 is Manchester, 020 is London, 01388 is Bishop Auckland.
What it costs
Charged as a normal UK call and usually included in landline and mobile allowances.
Watch out for
A local-looking number feels familiar, which is exactly why scammers spoof them. A local area code is not proof the caller is local.
01245 numbers: common questions
Who owns 01245 numbers?
Ofcom allocated the ranges starting 01245 to BT, Gamma Telecom Holdings Limited, Sky UK Limited and others. Numbers can be moved between providers, so this shows who the range was originally given to – not who is using a particular number today.
How do I call a 01245 number from abroad?
Replace the leading 0 with +44. For example, a number starting 01245 becomes +44 1245 followed by the rest of the number.
How much does it cost to call a 01245 number?
Charged as a normal UK call and usually included in landline and mobile allowances.
Is a call from a 01245 number a scam?
A local-looking number feels familiar, which is exactly why scammers spoof them. A local area code is not proof the caller is local. Check the full number on Who’s Calling to see if it belongs to a verified business and what other people have reported.
Did a 01245 number call you?
Check the full number to see if it belongs to a verified UK business and what other people have reported.
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