Area Code +1-240-(2472000...2472999) 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 : 2472000 Subscriber Number To : 2472999 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 : ALLEGIANCE TELCOM 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-(2471000...2471999) next › : +1-240-(2473000...2473999) Dialling Instructions For trunk calls: 0 240 2472000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 240 2472000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2472000 ~ 2472999 (Count: 1,000) Example: +1-240-2472000 / 0111-240-2472000 (1240-2472000 / 1-240-2472000) +1-240-2472001 / 0111-240-2472001 (1240-2472001 / 1-240-2472001) +1-240-2472002 / 0111-240-2472002 (1240-2472002 / 1-240-2472002) +1-240-2472003 / 0111-240-2472003 (1240-2472003 / 1-240-2472003) +1-240-2472004 / 0111-240-2472004 (1240-2472004 / 1-240-2472004) ...+1-240-xxxxxxx / 0111-240-xxxxxxx (1240-xxxxxxx / 1-240-xxxxxxx) ...+1-240-2472995 / 0111-240-2472995 (1240-2472995 / 1-240-2472995) +1-240-2472996 / 0111-240-2472996 (1240-2472996 / 1-240-2472996) +1-240-2472997 / 0111-240-2472997 (1240-2472997 / 1-240-2472997) +1-240-2472998 / 0111-240-2472998 (1240-2472998 / 1-240-2472998) +1-240-2472999 / 0111-240-2472999 (1240-2472999 / 1-240-2472999)