Area Code +1-301-(2230000...2230999) located in Williamsport, 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 : 2230000 Subscriber Number To : 2230999 National Destination Code Length : 3 Uses National Destination Code : Yes National Significant Number Length : 10 Number Type : X (X) 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 : Williamsport Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 39.6000 Longitude : -77.8200 ‹ previous : +1-301-(2229000...2229999) next › : +1-301-(2231000...2231999) Dialling Instructions For trunk calls: 0 301 2230000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 301 2230000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2230000 ~ 2230999 (Count: 1,000) Example: +1-301-2230000 / 0111-301-2230000 (1301-2230000 / 1-301-2230000) +1-301-2230001 / 0111-301-2230001 (1301-2230001 / 1-301-2230001) +1-301-2230002 / 0111-301-2230002 (1301-2230002 / 1-301-2230002) +1-301-2230003 / 0111-301-2230003 (1301-2230003 / 1-301-2230003) +1-301-2230004 / 0111-301-2230004 (1301-2230004 / 1-301-2230004) ...+1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx) ...+1-301-2230995 / 0111-301-2230995 (1301-2230995 / 1-301-2230995) +1-301-2230996 / 0111-301-2230996 (1301-2230996 / 1-301-2230996) +1-301-2230997 / 0111-301-2230997 (1301-2230997 / 1-301-2230997) +1-301-2230998 / 0111-301-2230998 (1301-2230998 / 1-301-2230998) +1-301-2230999 / 0111-301-2230999 (1301-2230999 / 1-301-2230999)