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AreaCode/Prefix (Exchange) 301-251

AreaCode/Prefix 301-251 Details

NPA/Area Code: 301 NXX Use Type: LANDLINE
NXX/Prefix: 251 NXX Intro Version: 1994-02-04
City: ROCKVILLE New NPA:
State: MD Latitude: 39.0815
County: MONTGOMERY Longitude: -77.1503
County Population: 971777 LATA: 236
ZIP Code: 20851 Overlay:
ZIP Code Pop: 14191 Rate Center: WSNGTNZN10
ZIP Code Freq: -1 OCN: 9212
Time Zone: Eastern (GMT -05:00) FIPS: 24031
Observes DST: Unknown CBSA Code: 47900
CBSA Name: Washington-Arlington-Alexandria, DC-VA-MD-WV
Prefix Status: Active
Carrier/Company: VERIZON MARYLAND, INC.
       

ZIP Code Details

ZIP Code Pop Freq City State County Type
20851 14191 -1 ROCKVILLE MD MONTGOMERY LANDLINE
20852 40365 -2 ROCKVILLE MD MONTGOMERY LANDLINE
20850 46340 0 ROCKVILLE MD MONTGOMERY LANDLINE

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