Use the full area code before the local subscriber number.
UK geographic telephone code
01420 area code: Alton
The 01420 dialling code is associated with Alton.
How to dial Alton
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 01420 numbers
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Never spoke possibly an automated system
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call concerned medical issues
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Called them back , call cuts off
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This is "Digital Reality IT services". Spam call they hang up after call is answered.
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Another nuisance call - just ignore !
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Scammer keeps calling
Source and review
This page uses Ofcom telephone area codes area-code information retrieved on 3 September 2026.