Area Code +1-240-(3420000...3420999) located in Ashton 236, 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 : 3420000 Subscriber Number To : 3420999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : M (Mobile, Cellular) Carrier Name : OMNIPOINT COMM CAP 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 : Ashton 236 Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 39.1500 Longitude : -77.0100 ‹ previous : +1-240-(3419000...3419999) next › : +1-240-(3421000...3421999) Dialling Instructions For trunk calls: 0 240 3420000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 240 3420000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3420000 ~ 3420999 (Count: 1,000) Example: +1-240-3420000 / 0111-240-3420000 (1240-3420000 / 1-240-3420000) +1-240-3420001 / 0111-240-3420001 (1240-3420001 / 1-240-3420001) +1-240-3420002 / 0111-240-3420002 (1240-3420002 / 1-240-3420002) +1-240-3420003 / 0111-240-3420003 (1240-3420003 / 1-240-3420003) +1-240-3420004 / 0111-240-3420004 (1240-3420004 / 1-240-3420004) ...+1-240-xxxxxxx / 0111-240-xxxxxxx (1240-xxxxxxx / 1-240-xxxxxxx) ...+1-240-3420995 / 0111-240-3420995 (1240-3420995 / 1-240-3420995) +1-240-3420996 / 0111-240-3420996 (1240-3420996 / 1-240-3420996) +1-240-3420997 / 0111-240-3420997 (1240-3420997 / 1-240-3420997) +1-240-3420998 / 0111-240-3420998 (1240-3420998 / 1-240-3420998) +1-240-3420999 / 0111-240-3420999 (1240-3420999 / 1-240-3420999)