The 01666 phone code covers the Malmesbury area.
Phone numbers using this code are in the form of (01666) ### ###.
International callers should call +44 1666 ######.
The centre of the phone code area has a latitude of 51.586357 and longitude of -2.102834.
The nearest other phone codes are: Malmesbury (01666) Chippenham (01249) Cirencester (01285) Dursley (01453) Chipping Sodbury (01454)