Area Code +1-301-(2300000...2309999) located in Kensington, 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 : 2300000 Subscriber Number To : 2309999 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 : Kensington Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 39.0200 Longitude : -77.0800 ‹ previous : +1-301-(2290000...2299999) next › : +1-301-(2310000...2319999) Dialling Instructions For trunk calls: 0 301 2300000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 301 2300000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2300000 ~ 2309999 (Count: 10,000) Example: +1-301-2300000 / 0111-301-2300000 (1301-2300000 / 1-301-2300000) +1-301-2300001 / 0111-301-2300001 (1301-2300001 / 1-301-2300001) +1-301-2300002 / 0111-301-2300002 (1301-2300002 / 1-301-2300002) +1-301-2300003 / 0111-301-2300003 (1301-2300003 / 1-301-2300003) +1-301-2300004 / 0111-301-2300004 (1301-2300004 / 1-301-2300004) ...+1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx) ...+1-301-2309995 / 0111-301-2309995 (1301-2309995 / 1-301-2309995) +1-301-2309996 / 0111-301-2309996 (1301-2309996 / 1-301-2309996) +1-301-2309997 / 0111-301-2309997 (1301-2309997 / 1-301-2309997) +1-301-2309998 / 0111-301-2309998 (1301-2309998 / 1-301-2309998) +1-301-2309999 / 0111-301-2309999 (1301-2309999 / 1-301-2309999)