Use the full area code before the local subscriber number.
UK geographic telephone code
01204 area code: Bolton
The 01204 dialling code is associated with Bolton.
How to dial Bolton
Use +44 and remove the leading zero from the area code.
An area-code match describes the number range, not the caller's identity or current physical location. Caller ID can also be spoofed.
Recent reports for 01204 numbers
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Not a call from Bolton!
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Phoned but didn't speak
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Unknown - didn’t answer and didn’t leave me a message!
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Just another nuisance caller ~ the caller remained silent so I didn't wait.
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Called and asked I could hear her. I said yes, then she mumbled something and rang off. I think it was a scam caller.
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Spam, claimed to be from vodafone.
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Calling minors, after explaining the reason why they shouldn't and the number is listed on TPS, they forigner stated they do not have to comply with UK laws.
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Answered then they hung up
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Spam caller
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Silent call
Source and review
This page uses Ofcom telephone area codes area-code information retrieved on 3 September 2026.