Area Code +1-301-(3395000...3395999) located in Rockville, 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 : 3395000 Subscriber Number To : 3395999 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 : CAVALIER MID-ATL 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 : Rockville Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 39.0900 Longitude : -77.1600 ‹ previous : +1-301-(3394000...3394999) next › : +1-301-(3396000...3396999) Dialling Instructions For trunk calls: 0 301 3395000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 301 3395000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3395000 ~ 3395999 (Count: 1,000) Example: +1-301-3395000 / 0111-301-3395000 (1301-3395000 / 1-301-3395000) +1-301-3395001 / 0111-301-3395001 (1301-3395001 / 1-301-3395001) +1-301-3395002 / 0111-301-3395002 (1301-3395002 / 1-301-3395002) +1-301-3395003 / 0111-301-3395003 (1301-3395003 / 1-301-3395003) +1-301-3395004 / 0111-301-3395004 (1301-3395004 / 1-301-3395004) ...+1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx) ...+1-301-3395995 / 0111-301-3395995 (1301-3395995 / 1-301-3395995) +1-301-3395996 / 0111-301-3395996 (1301-3395996 / 1-301-3395996) +1-301-3395997 / 0111-301-3395997 (1301-3395997 / 1-301-3395997) +1-301-3395998 / 0111-301-3395998 (1301-3395998 / 1-301-3395998) +1-301-3395999 / 0111-301-3395999 (1301-3395999 / 1-301-3395999)