Area Code +1-240-(8630000...8630999) located in Silver Spring, 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 : 8630000 Subscriber Number To : 8630999 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 : TW TELECOM 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 : Silver Spring Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 39.0100 Longitude : -77.0400 ‹ previous : +1-240-(8570000...8579999) next › : +1-240-(8631000...8631999) Dialling Instructions For trunk calls: 0 240 8630000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 240 8630000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 8630000 ~ 8630999 (Count: 1,000) Example: +1-240-8630000 / 0111-240-8630000 (1240-8630000 / 1-240-8630000) +1-240-8630001 / 0111-240-8630001 (1240-8630001 / 1-240-8630001) +1-240-8630002 / 0111-240-8630002 (1240-8630002 / 1-240-8630002) +1-240-8630003 / 0111-240-8630003 (1240-8630003 / 1-240-8630003) +1-240-8630004 / 0111-240-8630004 (1240-8630004 / 1-240-8630004) ...+1-240-xxxxxxx / 0111-240-xxxxxxx (1240-xxxxxxx / 1-240-xxxxxxx) ...+1-240-8630995 / 0111-240-8630995 (1240-8630995 / 1-240-8630995) +1-240-8630996 / 0111-240-8630996 (1240-8630996 / 1-240-8630996) +1-240-8630997 / 0111-240-8630997 (1240-8630997 / 1-240-8630997) +1-240-8630998 / 0111-240-8630998 (1240-8630998 / 1-240-8630998) +1-240-8630999 / 0111-240-8630999 (1240-8630999 / 1-240-8630999)