Area Code +1-240-(2155000...2155999) located in Frederick, 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 : 2155000 Subscriber Number To : 2155999 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 : Frederick Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 39.4200 Longitude : -77.4100 ‹ previous : +1-240-(2154000...2154999) next › : +1-240-(2156000...2156999) Dialling Instructions For trunk calls: 0 240 2155000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 240 2155000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2155000 ~ 2155999 (Count: 1,000) Example: +1-240-2155000 / 0111-240-2155000 (1240-2155000 / 1-240-2155000) +1-240-2155001 / 0111-240-2155001 (1240-2155001 / 1-240-2155001) +1-240-2155002 / 0111-240-2155002 (1240-2155002 / 1-240-2155002) +1-240-2155003 / 0111-240-2155003 (1240-2155003 / 1-240-2155003) +1-240-2155004 / 0111-240-2155004 (1240-2155004 / 1-240-2155004) ...+1-240-xxxxxxx / 0111-240-xxxxxxx (1240-xxxxxxx / 1-240-xxxxxxx) ...+1-240-2155995 / 0111-240-2155995 (1240-2155995 / 1-240-2155995) +1-240-2155996 / 0111-240-2155996 (1240-2155996 / 1-240-2155996) +1-240-2155997 / 0111-240-2155997 (1240-2155997 / 1-240-2155997) +1-240-2155998 / 0111-240-2155998 (1240-2155998 / 1-240-2155998) +1-240-2155999 / 0111-240-2155999 (1240-2155999 / 1-240-2155999)