Area Code +1-301-(2555000...2555999) 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 : 2555000 Subscriber Number To : 2555999 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-(2554000...2554999) next › : +1-301-(2556000...2556999) Dialling Instructions For trunk calls: 0 301 2555000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 301 2555000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2555000 ~ 2555999 (Count: 1,000) Example: +1-301-2555000 / 0111-301-2555000 (1301-2555000 / 1-301-2555000) +1-301-2555001 / 0111-301-2555001 (1301-2555001 / 1-301-2555001) +1-301-2555002 / 0111-301-2555002 (1301-2555002 / 1-301-2555002) +1-301-2555003 / 0111-301-2555003 (1301-2555003 / 1-301-2555003) +1-301-2555004 / 0111-301-2555004 (1301-2555004 / 1-301-2555004) ...+1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx) ...+1-301-2555995 / 0111-301-2555995 (1301-2555995 / 1-301-2555995) +1-301-2555996 / 0111-301-2555996 (1301-2555996 / 1-301-2555996) +1-301-2555997 / 0111-301-2555997 (1301-2555997 / 1-301-2555997) +1-301-2555998 / 0111-301-2555998 (1301-2555998 / 1-301-2555998) +1-301-2555999 / 0111-301-2555999 (1301-2555999 / 1-301-2555999)