Area Code +1-301-(3312000...3312999) 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 : 3312000 Subscriber Number To : 3312999 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-(3311000...3311999) next › : +1-301-(3313000...3313999) Dialling Instructions For trunk calls: 0 301 3312000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 301 3312000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3312000 ~ 3312999 (Count: 1,000) Example: +1-301-3312000 / 0111-301-3312000 (1301-3312000 / 1-301-3312000) +1-301-3312001 / 0111-301-3312001 (1301-3312001 / 1-301-3312001) +1-301-3312002 / 0111-301-3312002 (1301-3312002 / 1-301-3312002) +1-301-3312003 / 0111-301-3312003 (1301-3312003 / 1-301-3312003) +1-301-3312004 / 0111-301-3312004 (1301-3312004 / 1-301-3312004) ...+1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx) ...+1-301-3312995 / 0111-301-3312995 (1301-3312995 / 1-301-3312995) +1-301-3312996 / 0111-301-3312996 (1301-3312996 / 1-301-3312996) +1-301-3312997 / 0111-301-3312997 (1301-3312997 / 1-301-3312997) +1-301-3312998 / 0111-301-3312998 (1301-3312998 / 1-301-3312998) +1-301-3312999 / 0111-301-3312999 (1301-3312999 / 1-301-3312999)