Area Code +1-301-(2985000...2985999) located in Upper Marlboro, 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 : 2985000 Subscriber Number To : 2985999 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 : LEVEL 3 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 : Upper Marlboro Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 38.8200 Longitude : -76.7500 ‹ previous : +1-301-(2984000...2984999) next › : +1-301-(2986000...2986999) Dialling Instructions For trunk calls: 0 301 2985000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 301 2985000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2985000 ~ 2985999 (Count: 1,000) Example: +1-301-2985000 / 0111-301-2985000 (1301-2985000 / 1-301-2985000) +1-301-2985001 / 0111-301-2985001 (1301-2985001 / 1-301-2985001) +1-301-2985002 / 0111-301-2985002 (1301-2985002 / 1-301-2985002) +1-301-2985003 / 0111-301-2985003 (1301-2985003 / 1-301-2985003) +1-301-2985004 / 0111-301-2985004 (1301-2985004 / 1-301-2985004) ...+1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx) ...+1-301-2985995 / 0111-301-2985995 (1301-2985995 / 1-301-2985995) +1-301-2985996 / 0111-301-2985996 (1301-2985996 / 1-301-2985996) +1-301-2985997 / 0111-301-2985997 (1301-2985997 / 1-301-2985997) +1-301-2985998 / 0111-301-2985998 (1301-2985998 / 1-301-2985998) +1-301-2985999 / 0111-301-2985999 (1301-2985999 / 1-301-2985999)