Area Code +1-301-(4639000...4639999) located in Lonaconing, 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 : 4639000 Subscriber Number To : 4639999 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 : Lonaconing Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 39.5700 Longitude : -78.9800 ‹ previous : +1-301-(4638000...4638999) next › : +1-301-(4640000...4649999) Dialling Instructions For trunk calls: 0 301 4639000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 301 4639000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 4639000 ~ 4639999 (Count: 1,000) Example: +1-301-4639000 / 0111-301-4639000 (1301-4639000 / 1-301-4639000) +1-301-4639001 / 0111-301-4639001 (1301-4639001 / 1-301-4639001) +1-301-4639002 / 0111-301-4639002 (1301-4639002 / 1-301-4639002) +1-301-4639003 / 0111-301-4639003 (1301-4639003 / 1-301-4639003) +1-301-4639004 / 0111-301-4639004 (1301-4639004 / 1-301-4639004) ...+1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx) ...+1-301-4639995 / 0111-301-4639995 (1301-4639995 / 1-301-4639995) +1-301-4639996 / 0111-301-4639996 (1301-4639996 / 1-301-4639996) +1-301-4639997 / 0111-301-4639997 (1301-4639997 / 1-301-4639997) +1-301-4639998 / 0111-301-4639998 (1301-4639998 / 1-301-4639998) +1-301-4639999 / 0111-301-4639999 (1301-4639999 / 1-301-4639999)