Use the full area code before the local subscriber number.
UK geographic telephone code
01604 area code: Northampton
The 01604 dialling code is associated with Northampton.
How to dial Northampton
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 01604 numbers
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Called today 19/05/2026, left no message, ?.
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This number rang a friend three times, no message left when unanswered and no response when answered.
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Very persistent caller, ringing day and night, every day. I have never answered their calls.
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Phoned at 07:15 in the morning when we were in bed! Really?
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Cut off as soon as I answered
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Cut off as soon as I answered
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Nevermind! it was Uni of Northampton LOL
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Appeared as Uni Express on my phone, no clue if that's real or not
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Possible scam callers, they hung up as soon as I answered
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Insurance renewal
Source and review
This page uses Ofcom telephone area codes area-code information retrieved on 3 September 2026.