Area Code +1-301-(2140000...2149999) located in Bethesda, 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 : 2140000 Subscriber Number To : 2149999 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 : Bethesda Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 38.9800 Longitude : -77.1100 ‹ previous : +1-301-(2130000...2139999) next › : +1-301-(2150000...2159999) Dialling Instructions For trunk calls: 0 301 2140000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 301 2140000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2140000 ~ 2149999 (Count: 10,000) Example: +1-301-2140000 / 0111-301-2140000 (1301-2140000 / 1-301-2140000) +1-301-2140001 / 0111-301-2140001 (1301-2140001 / 1-301-2140001) +1-301-2140002 / 0111-301-2140002 (1301-2140002 / 1-301-2140002) +1-301-2140003 / 0111-301-2140003 (1301-2140003 / 1-301-2140003) +1-301-2140004 / 0111-301-2140004 (1301-2140004 / 1-301-2140004) ...+1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx) ...+1-301-2149995 / 0111-301-2149995 (1301-2149995 / 1-301-2149995) +1-301-2149996 / 0111-301-2149996 (1301-2149996 / 1-301-2149996) +1-301-2149997 / 0111-301-2149997 (1301-2149997 / 1-301-2149997) +1-301-2149998 / 0111-301-2149998 (1301-2149998 / 1-301-2149998) +1-301-2149999 / 0111-301-2149999 (1301-2149999 / 1-301-2149999)