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UK geographic telephone code

01420 area code: Alton

The 01420 dialling code is associated with Alton.

How to dial Alton

Within the UK 01420

Use the full area code before the local subscriber number.

From outside the UK +44 1420

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.

Source and review

This page uses Ofcom telephone area codes area-code information retrieved on 3 September 2026.

View the source or tell us about a correction.