Area Code +1-301-(3590000...3590999) located in Westernport, Maryland (MD), more detail is as below. Place International Dialing Code : 1 International Prefix : 011 National Prefix : 1 National Destination Code : 301 Subscriber Number From : 3590000 Subscriber Number To : 3590999 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 : VERIZON MARYLAND INC 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 : Westernport Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 39.4900 Longitude : -79.0400 ‹ previous : +1-301-(3589000...3589999) next › : +1-301-(3591000...3591999) Dialling Instructions For trunk calls: 0 301 3590000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 301 3590000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3590000 ~ 3590999 (Count: 1,000) Example: +1-301-3590000 / 0111-301-3590000 (1301-3590000 / 1-301-3590000) +1-301-3590001 / 0111-301-3590001 (1301-3590001 / 1-301-3590001) +1-301-3590002 / 0111-301-3590002 (1301-3590002 / 1-301-3590002) +1-301-3590003 / 0111-301-3590003 (1301-3590003 / 1-301-3590003) +1-301-3590004 / 0111-301-3590004 (1301-3590004 / 1-301-3590004) ...+1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx) ...+1-301-3590995 / 0111-301-3590995 (1301-3590995 / 1-301-3590995) +1-301-3590996 / 0111-301-3590996 (1301-3590996 / 1-301-3590996) +1-301-3590997 / 0111-301-3590997 (1301-3590997 / 1-301-3590997) +1-301-3590998 / 0111-301-3590998 (1301-3590998 / 1-301-3590998) +1-301-3590999 / 0111-301-3590999 (1301-3590999 / 1-301-3590999)