UK Area Code Finder
Quick and easy telephone dialling code information
UK area code 01707 covers Welwyn Garden City in the county of Hertfordshire.
Other areas using 01707 numbers include Cuffley, Hatfield and Potters Bar.
01707 numbers are normal, landline numbers charged at standard rates.
Local telephone numbers in Welwyn Garden City are six digits long. An 01707 number should be displayed in the format:
01707 xxxxxx or (01707) xxxxxx
For international callers, use: +44 1707 xxxxxx