Area Code +1-301-(3530000...3539999) located in Rockville, 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 : 3530000 Subscriber Number To : 3539999 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 : Rockville Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 39.0900 Longitude : -77.1600 ‹ previous : +1-301-(3520000...3529999) next › : +1-301-(3540000...3540999) Dialling Instructions For trunk calls: 0 301 3530000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 301 3530000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3530000 ~ 3539999 (Count: 10,000) Example: +1-301-3530000 / 0111-301-3530000 (1301-3530000 / 1-301-3530000) +1-301-3530001 / 0111-301-3530001 (1301-3530001 / 1-301-3530001) +1-301-3530002 / 0111-301-3530002 (1301-3530002 / 1-301-3530002) +1-301-3530003 / 0111-301-3530003 (1301-3530003 / 1-301-3530003) +1-301-3530004 / 0111-301-3530004 (1301-3530004 / 1-301-3530004) ...+1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx) ...+1-301-3539995 / 0111-301-3539995 (1301-3539995 / 1-301-3539995) +1-301-3539996 / 0111-301-3539996 (1301-3539996 / 1-301-3539996) +1-301-3539997 / 0111-301-3539997 (1301-3539997 / 1-301-3539997) +1-301-3539998 / 0111-301-3539998 (1301-3539998 / 1-301-3539998) +1-301-3539999 / 0111-301-3539999 (1301-3539999 / 1-301-3539999)
