Area Code +1-301-(3690000...3699999) located in Berwyn, 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 : 3690000 Subscriber Number To : 3699999 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 : Berwyn Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 38.9900 Longitude : -76.9100 ‹ previous : +1-301-(3689000...3689999) next › : +1-301-(3700000...3709999) Dialling Instructions For trunk calls: 0 301 3690000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 301 3690000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3690000 ~ 3699999 (Count: 10,000) Example: +1-301-3690000 / 0111-301-3690000 (1301-3690000 / 1-301-3690000) +1-301-3690001 / 0111-301-3690001 (1301-3690001 / 1-301-3690001) +1-301-3690002 / 0111-301-3690002 (1301-3690002 / 1-301-3690002) +1-301-3690003 / 0111-301-3690003 (1301-3690003 / 1-301-3690003) +1-301-3690004 / 0111-301-3690004 (1301-3690004 / 1-301-3690004) ...+1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx) ...+1-301-3699995 / 0111-301-3699995 (1301-3699995 / 1-301-3699995) +1-301-3699996 / 0111-301-3699996 (1301-3699996 / 1-301-3699996) +1-301-3699997 / 0111-301-3699997 (1301-3699997 / 1-301-3699997) +1-301-3699998 / 0111-301-3699998 (1301-3699998 / 1-301-3699998) +1-301-3699999 / 0111-301-3699999 (1301-3699999 / 1-301-3699999)