Area Code +1-301-(3311000...3311999) located in Hagerstown, 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 : 3311000 Subscriber Number To : 3311999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : M (Mobile, Cellular) Carrier Name : NEW CINGULAR WRLS DC 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 : Hagerstown Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 39.6400 Longitude : -77.7200 ‹ previous : +1-301-(3310000...3310999) next › : +1-301-(3312000...3312999) Dialling Instructions For trunk calls: 0 301 3311000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 301 3311000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3311000 ~ 3311999 (Count: 1,000) Example: +1-301-3311000 / 0111-301-3311000 (1301-3311000 / 1-301-3311000) +1-301-3311001 / 0111-301-3311001 (1301-3311001 / 1-301-3311001) +1-301-3311002 / 0111-301-3311002 (1301-3311002 / 1-301-3311002) +1-301-3311003 / 0111-301-3311003 (1301-3311003 / 1-301-3311003) +1-301-3311004 / 0111-301-3311004 (1301-3311004 / 1-301-3311004) ...+1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx) ...+1-301-3311995 / 0111-301-3311995 (1301-3311995 / 1-301-3311995) +1-301-3311996 / 0111-301-3311996 (1301-3311996 / 1-301-3311996) +1-301-3311997 / 0111-301-3311997 (1301-3311997 / 1-301-3311997) +1-301-3311998 / 0111-301-3311998 (1301-3311998 / 1-301-3311998) +1-301-3311999 / 0111-301-3311999 (1301-3311999 / 1-301-3311999)