Area Code +1-240-(5299000...5299999) 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 : 5299000 Subscriber Number To : 5299999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : M (Mobile, Cellular) Carrier Name : SPRINT SPECTRUM LP 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-(5298000...5298999) next › : +1-240-(5301000...5301999) Dialling Instructions For trunk calls: 0 240 5299000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 240 5299000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 5299000 ~ 5299999 (Count: 1,000) Example: +1-240-5299000 / 0111-240-5299000 (1240-5299000 / 1-240-5299000) +1-240-5299001 / 0111-240-5299001 (1240-5299001 / 1-240-5299001) +1-240-5299002 / 0111-240-5299002 (1240-5299002 / 1-240-5299002) +1-240-5299003 / 0111-240-5299003 (1240-5299003 / 1-240-5299003) +1-240-5299004 / 0111-240-5299004 (1240-5299004 / 1-240-5299004) ...+1-240-xxxxxxx / 0111-240-xxxxxxx (1240-xxxxxxx / 1-240-xxxxxxx) ...+1-240-5299995 / 0111-240-5299995 (1240-5299995 / 1-240-5299995) +1-240-5299996 / 0111-240-5299996 (1240-5299996 / 1-240-5299996) +1-240-5299997 / 0111-240-5299997 (1240-5299997 / 1-240-5299997) +1-240-5299998 / 0111-240-5299998 (1240-5299998 / 1-240-5299998) +1-240-5299999 / 0111-240-5299999 (1240-5299999 / 1-240-5299999)