Area Code +1-240-(3972000...3972999) located in Frederick, 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 : 3972000 Subscriber Number To : 3972999 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 : US LEC OF 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 : Frederick Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 39.4200 Longitude : -77.4100 ‹ previous : +1-240-(3971000...3971999) next › : +1-240-(3973000...3973999) Dialling Instructions For trunk calls: 0 240 3972000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 240 3972000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3972000 ~ 3972999 (Count: 1,000) Example: +1-240-3972000 / 0111-240-3972000 (1240-3972000 / 1-240-3972000) +1-240-3972001 / 0111-240-3972001 (1240-3972001 / 1-240-3972001) +1-240-3972002 / 0111-240-3972002 (1240-3972002 / 1-240-3972002) +1-240-3972003 / 0111-240-3972003 (1240-3972003 / 1-240-3972003) +1-240-3972004 / 0111-240-3972004 (1240-3972004 / 1-240-3972004) ...+1-240-xxxxxxx / 0111-240-xxxxxxx (1240-xxxxxxx / 1-240-xxxxxxx) ...+1-240-3972995 / 0111-240-3972995 (1240-3972995 / 1-240-3972995) +1-240-3972996 / 0111-240-3972996 (1240-3972996 / 1-240-3972996) +1-240-3972997 / 0111-240-3972997 (1240-3972997 / 1-240-3972997) +1-240-3972998 / 0111-240-3972998 (1240-3972998 / 1-240-3972998) +1-240-3972999 / 0111-240-3972999 (1240-3972999 / 1-240-3972999)
