Area Code +1-240-(3394000...3394999) 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 : 240 Subscriber Number From : 3394000 Subscriber Number To : 3394999 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 : BANDWIDTH.COM - 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 : +1-240-(3393000...3393999) next › : +1-240-(3395000...3395999) Dialling Instructions For trunk calls: 0 240 3394000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 240 3394000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3394000 ~ 3394999 (Count: 1,000) Example: +1-240-3394000 / 0111-240-3394000 (1240-3394000 / 1-240-3394000) +1-240-3394001 / 0111-240-3394001 (1240-3394001 / 1-240-3394001) +1-240-3394002 / 0111-240-3394002 (1240-3394002 / 1-240-3394002) +1-240-3394003 / 0111-240-3394003 (1240-3394003 / 1-240-3394003) +1-240-3394004 / 0111-240-3394004 (1240-3394004 / 1-240-3394004) ...+1-240-xxxxxxx / 0111-240-xxxxxxx (1240-xxxxxxx / 1-240-xxxxxxx) ...+1-240-3394995 / 0111-240-3394995 (1240-3394995 / 1-240-3394995) +1-240-3394996 / 0111-240-3394996 (1240-3394996 / 1-240-3394996) +1-240-3394997 / 0111-240-3394997 (1240-3394997 / 1-240-3394997) +1-240-3394998 / 0111-240-3394998 (1240-3394998 / 1-240-3394998) +1-240-3394999 / 0111-240-3394999 (1240-3394999 / 1-240-3394999)