01707 area code: Welwyn Garden City

Local information, history, and recent phone activity for Welwyn Garden City.

The 01707 area code covers Welwyn Garden City and its surrounding area.

Locations using the 01707 area code

  • Cuffley
  • Hatfield
  • Potters Bar
  • Welwyn Garden City

When is it necessary to use the 01707 Welwyn Garden City dialling code?

If you're calling from outside the 01707 Welwyn Garden City area code, you'll need to use the dialling code. If you're using a landline or mobile phone within the same area code, you don't need to use the 01707 code. When calling from outside the UK, you'll need to include the international dialling code for your country, followed by the UK code (44) and the area code without the first zero (01707).

RegionInternational PrefixPhone NumberPhone Number to Dial
United States and Canada01101707 939318011 44 1707 939318
Europe0001707 38404400 44 1707 384044
Australia001101707 3840480011 44 1707 384048

Locations (codes) near the 01707 code

The Beginning of the 01707 Area Code

Prior to the PhONEday event in April 1995, the area code was 0707 and the historic mnemonic code was PO7, with the first two characters taken from the letters and and in in bar. On an old rotary dial telephone, this code would have been entered by dialling the numbers 7, 0, and 7.

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