Area Code:

301230

State Area Code:

301

City Prefix:

230

City:

ROCKVILLE

State:

Maryland

Zipcode:

20852, 20851, 20853

County (FIPS Code):

MONTGOMERY ( 24031 )

Country:

United States of America

Carrier:

VERIZON MARYLAND, INC.

Latitude & Longitude:

39.0558 -77.123

Type of Service:

Land Line

Time Zone:

Eastern

Businesses in Prefix:

99