The 01858 phone code covers the Market Harborough area.
Phone numbers using this code are in the form of (01858) ### ###.
International callers should call +44 1858 ######.
The centre of the phone code area has a latitude of 52.475769 and longitude of -0.921517.
The nearest other phone codes are: Market Harborough (01858) Kettering (01536) Leicester (0116) Wellingborough (01933) Kelso (01573)