Area Code +1-301-(3687000...3687999) located in Damascus 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 : 3687000 Subscriber Number To : 3687999 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 : Damascus 236 Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 39.2900 Longitude : -77.2100 ‹ previous : +1-301-(3686000...3686999) next › : +1-301-(3688000...3688999) Dialling Instructions For trunk calls: 0 301 3687000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 301 3687000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3687000 ~ 3687999 (Count: 1,000) Example: +1-301-3687000 / 0111-301-3687000 (1301-3687000 / 1-301-3687000) +1-301-3687001 / 0111-301-3687001 (1301-3687001 / 1-301-3687001) +1-301-3687002 / 0111-301-3687002 (1301-3687002 / 1-301-3687002) +1-301-3687003 / 0111-301-3687003 (1301-3687003 / 1-301-3687003) +1-301-3687004 / 0111-301-3687004 (1301-3687004 / 1-301-3687004) ...+1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx) ...+1-301-3687995 / 0111-301-3687995 (1301-3687995 / 1-301-3687995) +1-301-3687996 / 0111-301-3687996 (1301-3687996 / 1-301-3687996) +1-301-3687997 / 0111-301-3687997 (1301-3687997 / 1-301-3687997) +1-301-3687998 / 0111-301-3687998 (1301-3687998 / 1-301-3687998) +1-301-3687999 / 0111-301-3687999 (1301-3687999 / 1-301-3687999)