Area Code +1-240-(3663000...3663999) located in Williamsport, 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 : 3663000 Subscriber Number To : 3663999 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 : Williamsport Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 39.6000 Longitude : -77.8200 ‹ previous : +1-240-(3662000...3662999) next › : +1-240-(3667000...3667999) Dialling Instructions For trunk calls: 0 240 3663000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 240 3663000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3663000 ~ 3663999 (Count: 1,000) Example: +1-240-3663000 / 0111-240-3663000 (1240-3663000 / 1-240-3663000) +1-240-3663001 / 0111-240-3663001 (1240-3663001 / 1-240-3663001) +1-240-3663002 / 0111-240-3663002 (1240-3663002 / 1-240-3663002) +1-240-3663003 / 0111-240-3663003 (1240-3663003 / 1-240-3663003) +1-240-3663004 / 0111-240-3663004 (1240-3663004 / 1-240-3663004) ...+1-240-xxxxxxx / 0111-240-xxxxxxx (1240-xxxxxxx / 1-240-xxxxxxx) ...+1-240-3663995 / 0111-240-3663995 (1240-3663995 / 1-240-3663995) +1-240-3663996 / 0111-240-3663996 (1240-3663996 / 1-240-3663996) +1-240-3663997 / 0111-240-3663997 (1240-3663997 / 1-240-3663997) +1-240-3663998 / 0111-240-3663998 (1240-3663998 / 1-240-3663998) +1-240-3663999 / 0111-240-3663999 (1240-3663999 / 1-240-3663999)