Area Code +1-240-(2153000...2153999) 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 : 2153000 Subscriber Number To : 2153999 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 : LEVEL 3 COMM - 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-(2152000...2152999) next › : +1-240-(2154000...2154999) Dialling Instructions For trunk calls: 0 240 2153000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 240 2153000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2153000 ~ 2153999 (Count: 1,000) Example: +1-240-2153000 / 0111-240-2153000 (1240-2153000 / 1-240-2153000) +1-240-2153001 / 0111-240-2153001 (1240-2153001 / 1-240-2153001) +1-240-2153002 / 0111-240-2153002 (1240-2153002 / 1-240-2153002) +1-240-2153003 / 0111-240-2153003 (1240-2153003 / 1-240-2153003) +1-240-2153004 / 0111-240-2153004 (1240-2153004 / 1-240-2153004) ...+1-240-xxxxxxx / 0111-240-xxxxxxx (1240-xxxxxxx / 1-240-xxxxxxx) ...+1-240-2153995 / 0111-240-2153995 (1240-2153995 / 1-240-2153995) +1-240-2153996 / 0111-240-2153996 (1240-2153996 / 1-240-2153996) +1-240-2153997 / 0111-240-2153997 (1240-2153997 / 1-240-2153997) +1-240-2153998 / 0111-240-2153998 (1240-2153998 / 1-240-2153998) +1-240-2153999 / 0111-240-2153999 (1240-2153999 / 1-240-2153999)