Area Code +1-301-(3231000...3231999) located in Laurel 236, 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 : 3231000 Subscriber Number To : 3231999 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 : TW TELECOM OF 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 : Laurel 236 Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 39.1000 Longitude : -76.8500 ‹ previous : +1-301-(3230000...3230999) next › : +1-301-(3232000...3232999) Dialling Instructions For trunk calls: 0 301 3231000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 301 3231000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3231000 ~ 3231999 (Count: 1,000) Example: +1-301-3231000 / 0111-301-3231000 (1301-3231000 / 1-301-3231000) +1-301-3231001 / 0111-301-3231001 (1301-3231001 / 1-301-3231001) +1-301-3231002 / 0111-301-3231002 (1301-3231002 / 1-301-3231002) +1-301-3231003 / 0111-301-3231003 (1301-3231003 / 1-301-3231003) +1-301-3231004 / 0111-301-3231004 (1301-3231004 / 1-301-3231004) ...+1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx) ...+1-301-3231995 / 0111-301-3231995 (1301-3231995 / 1-301-3231995) +1-301-3231996 / 0111-301-3231996 (1301-3231996 / 1-301-3231996) +1-301-3231997 / 0111-301-3231997 (1301-3231997 / 1-301-3231997) +1-301-3231998 / 0111-301-3231998 (1301-3231998 / 1-301-3231998) +1-301-3231999 / 0111-301-3231999 (1301-3231999 / 1-301-3231999)