0121 area code: Birmingham
0121 is the area code for Birmingham. Ofcom’s numbering data lists 1,000 number ranges starting 0121, allocated to 179 providers. The largest holder is BT, with 23% of them.
Who were 0121 ranges given to?
Providers Ofcom allocated these number ranges to.
- Not allocated to a provider397 ranges
- BT226 ranges
- Virgin Media Limited56 ranges
- Vodafone Ltd (C&W)47 ranges
- Gamma Telecom Holdings Limited22 ranges
- GCI Network Solutions Limited12 ranges
- Sky UK Limited11 ranges
- TalkTalk Communications Limited11 ranges
- Colt Technology Services10 ranges
- Dynamic Mobile Billing Limited5 ranges
- Magrathea Telecommunications Limited4 ranges
- Verizon UK Limited4 ranges
+ 168 more
Range status
How Ofcom lists the ranges starting 0121.
Allocations by year
Explore by the next digit
Each block below starts 0121. Pick one to narrow it down.
What a 0121 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.
0121 numbers: common questions
Where is the 0121 area code?
0121 is the UK dialling code for Birmingham. Calls from a 0121 number were made from a phone line issued for that area – although caller ID can be faked, so a local code is not proof the caller is local.
Who owns 0121 numbers?
Ofcom allocated the ranges starting 0121 to BT, Virgin Media Limited, Vodafone Ltd (C&W) 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 0121 number from abroad?
Replace the leading 0 with +44. For example, a number starting 0121 becomes +44 121 followed by the rest of the number.
How much does it cost to call a 0121 number?
Charged as a normal UK call and usually included in landline and mobile allowances.
Is a call from a 0121 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 0121 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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