Area Code +1-301-(2558000...2558999) located in Kensington, Maryland (MD), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 301 Subscriber Number From : 2558000 Subscriber Number To : 2558999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : G (Geographic Land Line, Fixed Line) Carrier Name : VERIZON MARYLAND INC Click here to buy United States Area Code Database Other Information Language Code : en (English) Country Number : 840 (United States) Country Code : US (United States) Region Code : MD Region Name : Maryland City : Kensington Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 39.0200 Longitude : -77.0800 ‹ previous : +1-301-(2557000...2557999) next › : +1-301-(2560000...2560999) Dialling Instructions For trunk calls: 0 301 2558000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 301 2558000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2558000 ~ 2558999 (Count: 1,000) Example: +1-301-2558000 / 0111-301-2558000 (1301-2558000 / 1-301-2558000) +1-301-2558001 / 0111-301-2558001 (1301-2558001 / 1-301-2558001) +1-301-2558002 / 0111-301-2558002 (1301-2558002 / 1-301-2558002) +1-301-2558003 / 0111-301-2558003 (1301-2558003 / 1-301-2558003) +1-301-2558004 / 0111-301-2558004 (1301-2558004 / 1-301-2558004) ...+1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx) ...+1-301-2558995 / 0111-301-2558995 (1301-2558995 / 1-301-2558995) +1-301-2558996 / 0111-301-2558996 (1301-2558996 / 1-301-2558996) +1-301-2558997 / 0111-301-2558997 (1301-2558997 / 1-301-2558997) +1-301-2558998 / 0111-301-2558998 (1301-2558998 / 1-301-2558998) +1-301-2558999 / 0111-301-2558999 (1301-2558999 / 1-301-2558999)