The 01923 phone code covers the Watford area.
Phone numbers using this code are in the form of (01923) ### ###.
International callers should call +44 1923 ######.
The centre of the phone code area has a latitude of 51.656489 and longitude of -0.390320.
The nearest other phone codes are: Watford (01923) St Albans (01727) Hemel Hempstead (01442) Uxbridge (01895) Slough (01753)