Area Code +1-301-(3481000...3481999) 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 : 3481000 Subscriber Number To : 3481999 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 : MCI WORLDCOM COMM 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 : 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-(3480000...3480999) next › : +1-301-(3482000...3482999) Dialling Instructions For trunk calls: 0 301 3481000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 301 3481000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3481000 ~ 3481999 (Count: 1,000) Example: +1-301-3481000 / 0111-301-3481000 (1301-3481000 / 1-301-3481000) +1-301-3481001 / 0111-301-3481001 (1301-3481001 / 1-301-3481001) +1-301-3481002 / 0111-301-3481002 (1301-3481002 / 1-301-3481002) +1-301-3481003 / 0111-301-3481003 (1301-3481003 / 1-301-3481003) +1-301-3481004 / 0111-301-3481004 (1301-3481004 / 1-301-3481004) ...+1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx) ...+1-301-3481995 / 0111-301-3481995 (1301-3481995 / 1-301-3481995) +1-301-3481996 / 0111-301-3481996 (1301-3481996 / 1-301-3481996) +1-301-3481997 / 0111-301-3481997 (1301-3481997 / 1-301-3481997) +1-301-3481998 / 0111-301-3481998 (1301-3481998 / 1-301-3481998) +1-301-3481999 / 0111-301-3481999 (1301-3481999 / 1-301-3481999)