Area Code +1-301-(6858000...6858999) 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 : 6858000 Subscriber Number To : 6858999 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 : QUANTUM TELECOM 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 : 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-(6856000...6856999) next › : +1-301-(6859000...6859999) Dialling Instructions For trunk calls: 0 301 6858000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 301 6858000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 6858000 ~ 6858999 (Count: 1,000) Example: +1-301-6858000 / 0111-301-6858000 (1301-6858000 / 1-301-6858000) +1-301-6858001 / 0111-301-6858001 (1301-6858001 / 1-301-6858001) +1-301-6858002 / 0111-301-6858002 (1301-6858002 / 1-301-6858002) +1-301-6858003 / 0111-301-6858003 (1301-6858003 / 1-301-6858003) +1-301-6858004 / 0111-301-6858004 (1301-6858004 / 1-301-6858004) ...+1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx) ...+1-301-6858995 / 0111-301-6858995 (1301-6858995 / 1-301-6858995) +1-301-6858996 / 0111-301-6858996 (1301-6858996 / 1-301-6858996) +1-301-6858997 / 0111-301-6858997 (1301-6858997 / 1-301-6858997) +1-301-6858998 / 0111-301-6858998 (1301-6858998 / 1-301-6858998) +1-301-6858999 / 0111-301-6858999 (1301-6858999 / 1-301-6858999)