Area Code +1-301-(3220000...3229999) located in Hyattsville, 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 : 3220000 Subscriber Number To : 3229999 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 : Hyattsville Timezone : America/New_York Coordinated Universal Time : -05:00 Daylight Saving Time : Yes National Significant Number Minimum Length : 10 Latitude : 38.9500 Longitude : -76.9500 ‹ previous : +1-301-(3219000...3219999) next › : +1-301-(3230000...3230999) Dialling Instructions For trunk calls: 0 301 3220000 (Trunk Code + National Destination Code + Subscriber Number) For international calls: 011 1 301 3220000 (International Prefix + International Dailing Code +National Destination Code + Subscriber Number) Telephone Number List 3220000 ~ 3229999 (Count: 10,000) Example: +1-301-3220000 / 0111-301-3220000 (1301-3220000 / 1-301-3220000) +1-301-3220001 / 0111-301-3220001 (1301-3220001 / 1-301-3220001) +1-301-3220002 / 0111-301-3220002 (1301-3220002 / 1-301-3220002) +1-301-3220003 / 0111-301-3220003 (1301-3220003 / 1-301-3220003) +1-301-3220004 / 0111-301-3220004 (1301-3220004 / 1-301-3220004) ...+1-301-xxxxxxx / 0111-301-xxxxxxx (1301-xxxxxxx / 1-301-xxxxxxx) ...+1-301-3229995 / 0111-301-3229995 (1301-3229995 / 1-301-3229995) +1-301-3229996 / 0111-301-3229996 (1301-3229996 / 1-301-3229996) +1-301-3229997 / 0111-301-3229997 (1301-3229997 / 1-301-3229997) +1-301-3229998 / 0111-301-3229998 (1301-3229998 / 1-301-3229998) +1-301-3229999 / 0111-301-3229999 (1301-3229999 / 1-301-3229999)