Area Code +1-301-(3787000...3787999) located in Frederick, 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 : 3787000 Subscriber Number To : 3787999 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 : TELEPORT COMM AM-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 : Frederick Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 39.4200 Longitude : -77.4100 ‹ previous : +1-301-(3786000...3786999) next › : +1-301-(3788000...3788999) Dialling Instructions For trunk calls: 0 301 3787000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 301 3787000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3787000 ~ 3787999 (Count: 1,000) Example: +1-301-3787000 / 0111-301-3787000 (1301-3787000 / 1-301-3787000) +1-301-3787001 / 0111-301-3787001 (1301-3787001 / 1-301-3787001) +1-301-3787002 / 0111-301-3787002 (1301-3787002 / 1-301-3787002) +1-301-3787003 / 0111-301-3787003 (1301-3787003 / 1-301-3787003) +1-301-3787004 / 0111-301-3787004 (1301-3787004 / 1-301-3787004) ...+1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx) ...+1-301-3787995 / 0111-301-3787995 (1301-3787995 / 1-301-3787995) +1-301-3787996 / 0111-301-3787996 (1301-3787996 / 1-301-3787996) +1-301-3787997 / 0111-301-3787997 (1301-3787997 / 1-301-3787997) +1-301-3787998 / 0111-301-3787998 (1301-3787998 / 1-301-3787998) +1-301-3787999 / 0111-301-3787999 (1301-3787999 / 1-301-3787999)
