Area Code +1-240-(3310000...3319999) 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 : 3310000 Subscriber Number To : 3319999 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 : 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-(3309000...3309999) next › : +1-240-(3320000...3329999) Dialling Instructions For trunk calls: 0 240 3310000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 240 3310000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3310000 ~ 3319999 (Count: 10,000) Example: +1-240-3310000 / 0111-240-3310000 (1240-3310000 / 1-240-3310000) +1-240-3310001 / 0111-240-3310001 (1240-3310001 / 1-240-3310001) +1-240-3310002 / 0111-240-3310002 (1240-3310002 / 1-240-3310002) +1-240-3310003 / 0111-240-3310003 (1240-3310003 / 1-240-3310003) +1-240-3310004 / 0111-240-3310004 (1240-3310004 / 1-240-3310004) ...+1-240-xxxxxxx / 0111-240-xxxxxxx (1240-xxxxxxx / 1-240-xxxxxxx) ...+1-240-3319995 / 0111-240-3319995 (1240-3319995 / 1-240-3319995) +1-240-3319996 / 0111-240-3319996 (1240-3319996 / 1-240-3319996) +1-240-3319997 / 0111-240-3319997 (1240-3319997 / 1-240-3319997) +1-240-3319998 / 0111-240-3319998 (1240-3319998 / 1-240-3319998) +1-240-3319999 / 0111-240-3319999 (1240-3319999 / 1-240-3319999)