Area Code +1-301-(2820000...2829999) located in Layhill, 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 : 2820000 Subscriber Number To : 2829999 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 : Layhill Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 39.0800 Longitude : -77.0500 ‹ previous : +1-301-(2819000...2819999) next › : +1-301-(2830000...2830999) Dialling Instructions For trunk calls: 0 301 2820000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 301 2820000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 2820000 ~ 2829999 (Count: 10,000) Example: +1-301-2820000 / 0111-301-2820000 (1301-2820000 / 1-301-2820000) +1-301-2820001 / 0111-301-2820001 (1301-2820001 / 1-301-2820001) +1-301-2820002 / 0111-301-2820002 (1301-2820002 / 1-301-2820002) +1-301-2820003 / 0111-301-2820003 (1301-2820003 / 1-301-2820003) +1-301-2820004 / 0111-301-2820004 (1301-2820004 / 1-301-2820004) ...+1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx) ...+1-301-2829995 / 0111-301-2829995 (1301-2829995 / 1-301-2829995) +1-301-2829996 / 0111-301-2829996 (1301-2829996 / 1-301-2829996) +1-301-2829997 / 0111-301-2829997 (1301-2829997 / 1-301-2829997) +1-301-2829998 / 0111-301-2829998 (1301-2829998 / 1-301-2829998) +1-301-2829999 / 0111-301-2829999 (1301-2829999 / 1-301-2829999)