Area Code +1-240-(2550000...2559999) located in Poolesville, Maryland (MD), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 240 Subscriber Number From : 2550000 Subscriber Number To : 2559999 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 : PEERLESS NTWK - 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 : Poolesville Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 39.1400 Longitude : -77.4200 ‹ previous : +1-240-(2549000...2549999) next › : +1-240-(2560000...2560999) Dialling Instructions For trunk calls: 0 240 2550000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 240 2550000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2550000 ~ 2559999 (Count: 10,000) Example: +1-240-2550000 / 0111-240-2550000 (1240-2550000 / 1-240-2550000) +1-240-2550001 / 0111-240-2550001 (1240-2550001 / 1-240-2550001) +1-240-2550002 / 0111-240-2550002 (1240-2550002 / 1-240-2550002) +1-240-2550003 / 0111-240-2550003 (1240-2550003 / 1-240-2550003) +1-240-2550004 / 0111-240-2550004 (1240-2550004 / 1-240-2550004) ...+1-240-xxxxxxx / 0111-240-xxxxxxx (1240-xxxxxxx / 1-240-xxxxxxx) ...+1-240-2559995 / 0111-240-2559995 (1240-2559995 / 1-240-2559995) +1-240-2559996 / 0111-240-2559996 (1240-2559996 / 1-240-2559996) +1-240-2559997 / 0111-240-2559997 (1240-2559997 / 1-240-2559997) +1-240-2559998 / 0111-240-2559998 (1240-2559998 / 1-240-2559998) +1-240-2559999 / 0111-240-2559999 (1240-2559999 / 1-240-2559999)