Area Code +1-301-(2879000...2879999) 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 : 2879000 Subscriber Number To : 2879999 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 : MCI WORLDCOM COMM MD 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-(2878000...2878999) next › : +1-301-(2880000...2880999) Dialling Instructions For trunk calls: 0 301 2879000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 301 2879000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2879000 ~ 2879999 (Count: 1,000) Example: +1-301-2879000 / 0111-301-2879000 (1301-2879000 / 1-301-2879000) +1-301-2879001 / 0111-301-2879001 (1301-2879001 / 1-301-2879001) +1-301-2879002 / 0111-301-2879002 (1301-2879002 / 1-301-2879002) +1-301-2879003 / 0111-301-2879003 (1301-2879003 / 1-301-2879003) +1-301-2879004 / 0111-301-2879004 (1301-2879004 / 1-301-2879004) ...+1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx) ...+1-301-2879995 / 0111-301-2879995 (1301-2879995 / 1-301-2879995) +1-301-2879996 / 0111-301-2879996 (1301-2879996 / 1-301-2879996) +1-301-2879997 / 0111-301-2879997 (1301-2879997 / 1-301-2879997) +1-301-2879998 / 0111-301-2879998 (1301-2879998 / 1-301-2879998) +1-301-2879999 / 0111-301-2879999 (1301-2879999 / 1-301-2879999)