Area Code:

301517

State Area Code:

301

City Prefix:

517

City:

ROCKVILLE

State:

Maryland

Zipcode:

20850, 20851, 20852

County (FIPS Code):

MONTGOMERY ( 24031 )

Country:

United States of America

Carrier:

VERIZON MARYLAND, INC.

Latitude & Longitude:

39.0815 -77.1503

Type of Service:

Land Line

Time Zone:

Eastern

Businesses in Prefix:

2