Area Code +1-240-(8122000...8122999) located in Poolesville, 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 : 8122000 Subscriber Number To : 8122999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : M (Mobile, Cellular) Carrier Name : VERIZON WIRELESS-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 : Poolesville Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 39.1400 Longitude : -77.4200 ‹ previous : +1-240-(8121000...8121999) next › : +1-240-(8123000...8123999) Dialling Instructions For trunk calls: 0 240 8122000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 240 8122000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 8122000 ~ 8122999 (Count: 1,000) Example: +1-240-8122000 / 0111-240-8122000 (1240-8122000 / 1-240-8122000) +1-240-8122001 / 0111-240-8122001 (1240-8122001 / 1-240-8122001) +1-240-8122002 / 0111-240-8122002 (1240-8122002 / 1-240-8122002) +1-240-8122003 / 0111-240-8122003 (1240-8122003 / 1-240-8122003) +1-240-8122004 / 0111-240-8122004 (1240-8122004 / 1-240-8122004) ...+1-240-xxxxxxx / 0111-240-xxxxxxx (1240-xxxxxxx / 1-240-xxxxxxx) ...+1-240-8122995 / 0111-240-8122995 (1240-8122995 / 1-240-8122995) +1-240-8122996 / 0111-240-8122996 (1240-8122996 / 1-240-8122996) +1-240-8122997 / 0111-240-8122997 (1240-8122997 / 1-240-8122997) +1-240-8122998 / 0111-240-8122998 (1240-8122998 / 1-240-8122998) +1-240-8122999 / 0111-240-8122999 (1240-8122999 / 1-240-8122999)