Area Code +1-240-(3590000...3599999) located in Indian Head, 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 : 3590000 Subscriber Number To : 3599999 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 : PEERLESS NTWK - 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 : Indian Head Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 38.6000 Longitude : -77.1600 ‹ previous : +1-240-(3580000...3589999) next › : +1-240-(3608000...3608999) Dialling Instructions For trunk calls: 0 240 3590000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 240 3590000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3590000 ~ 3599999 (Count: 10,000) Example: +1-240-3590000 / 0111-240-3590000 (1240-3590000 / 1-240-3590000) +1-240-3590001 / 0111-240-3590001 (1240-3590001 / 1-240-3590001) +1-240-3590002 / 0111-240-3590002 (1240-3590002 / 1-240-3590002) +1-240-3590003 / 0111-240-3590003 (1240-3590003 / 1-240-3590003) +1-240-3590004 / 0111-240-3590004 (1240-3590004 / 1-240-3590004) ...+1-240-xxxxxxx / 0111-240-xxxxxxx (1240-xxxxxxx / 1-240-xxxxxxx) ...+1-240-3599995 / 0111-240-3599995 (1240-3599995 / 1-240-3599995) +1-240-3599996 / 0111-240-3599996 (1240-3599996 / 1-240-3599996) +1-240-3599997 / 0111-240-3599997 (1240-3599997 / 1-240-3599997) +1-240-3599998 / 0111-240-3599998 (1240-3599998 / 1-240-3599998) +1-240-3599999 / 0111-240-3599999 (1240-3599999 / 1-240-3599999)