Area Code +1-240-(2101000...2101999) located in Waldorf, 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 : 2101000 Subscriber Number To : 2101999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : M (Mobile, Cellular) Carrier Name : NEW CINGULAR WRLS DC 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 : Waldorf Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 38.6300 Longitude : -76.9100 ‹ previous : +1-240-(2100000...2100999) next › : +1-240-(2102000...2102999) Dialling Instructions For trunk calls: 0 240 2101000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 240 2101000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2101000 ~ 2101999 (Count: 1,000) Example: +1-240-2101000 / 0111-240-2101000 (1240-2101000 / 1-240-2101000) +1-240-2101001 / 0111-240-2101001 (1240-2101001 / 1-240-2101001) +1-240-2101002 / 0111-240-2101002 (1240-2101002 / 1-240-2101002) +1-240-2101003 / 0111-240-2101003 (1240-2101003 / 1-240-2101003) +1-240-2101004 / 0111-240-2101004 (1240-2101004 / 1-240-2101004) ...+1-240-xxxxxxx / 0111-240-xxxxxxx (1240-xxxxxxx / 1-240-xxxxxxx) ...+1-240-2101995 / 0111-240-2101995 (1240-2101995 / 1-240-2101995) +1-240-2101996 / 0111-240-2101996 (1240-2101996 / 1-240-2101996) +1-240-2101997 / 0111-240-2101997 (1240-2101997 / 1-240-2101997) +1-240-2101998 / 0111-240-2101998 (1240-2101998 / 1-240-2101998) +1-240-2101999 / 0111-240-2101999 (1240-2101999 / 1-240-2101999)