Active Prefixes in Area Code 301
| Prefix | Primary City | Phone Type | Company |
|---|---|---|---|
| 301-816-#### | Rockville | Landline Numbers | Verizon Maryland, In... |
| 301-817-#### | District Heights | Landline Numbers | Verizon Maryland, In... |
| 301-818-#### | Waldorf | Landline Numbers | Verizon Maryland, In... |
| 301-819-#### | Silver Spring | Landline Numbers | Verizon Maryland, In... |
| 301-820-#### | Gaithersburg | Landline Numbers | At&t Local... |
| 301-821-#### | Annapolis Junction | Landline Numbers | At&t Local... |
| 301-822-#### | Washington Zone 11 | Landline Numbers | At&t Local... |
| 301-823-#### | Not available. | Landline Numbers | At&t Local... |
| 301-824-#### | Smithsburg | Landline Numbers | Verizon Maryland, In... |
| 301-825-#### | Rockville | Landline Numbers | At&t Local... |
| 301-826-#### | Lexington Park | Landline Numbers | Verizon Maryland, In... |
| 301-827-#### | Bethesda | Landline Numbers | Verizon Maryland, In... |
| 301-828-#### | Bethesda | Landline Numbers | At&t Local... |
| 301-829-#### | Mount Airy | Landline Numbers | Verizon Maryland, In... |
| 301-830-#### | Silver Spring | Landline Numbers | At&t Local... |
| 301-831-#### | Adamstown | Landline Numbers | Verizon Maryland, In... |
| 301-832-#### | Hyattsville | Landline Numbers | At&t Local... |
| 301-833-#### | Washington | Landline Numbers | Teleport Communicati... |
| 301-834-#### | Brunswick | Landline Numbers | Verizon Maryland, In... |
| 301-836-#### | Temple Hills | Landline Numbers | Verizon Maryland, In... |
| 301-837-#### | Washington | Landline Numbers | Mcimetro Access Tran... |
| 301-838-#### | Rockville | Landline Numbers | Verizon Maryland, In... |
| 301-839-#### | Oxon Hill | Landline Numbers | Verizon Maryland, In... |
| 301-840-#### | Gaithersburg | Landline Numbers | Verizon Maryland, In... |
| 301-841-#### | Washington Zone 2 | Landline Numbers | Mcimetro Access Tran... |
| 301-842-#### | Clear Spring | Landline Numbers | Verizon Maryland, In... |
| 301-843-#### | Waldorf | Landline Numbers | Verizon Maryland, In... |
| 301-844-#### | Washington Zone 3 | Wireless Numbers | Sprint Spectrum L.p.... |
| 301-845-#### | Walkersville | Landline Numbers | Verizon Maryland, In... |
| 301-846-#### | Frederick | Landline Numbers | Verizon Maryland, In... |
Area Code 301 Introduction
| Area Code: | 301 |
| Country: | United States |
| State/Province: | Maryland - MD |
| Major City: | Rockville |
| Time Zone: | Eastern |
| Average property | $188K |
| Average age | 58 y/o |
| Average assets | $75.3K |
| Population density | 12,407 sq mi (32,133 km2) |
| Population | 6,016,447 |
| latitude Longitude: | |
| 37° 53′ N to 39° 43′ N / 75° 03′ W to 79° 29′ W | |
| About 301 : | |
| The 301 Area Code (or Area Code 301) is located in the state of MD. Area Code 301 is one of the 269 3-digit telephone area codes in the USA. It covers roughly 2.89 million unique phone numbers and 12.2 million individuals near the city of Indian Head Area code 301 was put into service. In 1991 area code 301 was split to form area code 410. In 1997 area codes 301 was overlaid with area code 240. |
|
| Major cities or places | |
| Bethesda, MD>Bowie, MD>Chillum, MD>Clinton, MD>College Park, MD>Cumberland, MD>Fairland, MD>Fort Washington, MD>Frederick, MD>Gaithersburg, MD>Germantown, MD>Greenbelt, MD>Hagerstown, MD>Landover, MD>Montgomery Village, MD>North Bethesda, MD>North Laurel, MD>North Potomac, MD>Olney, MD>Oxon Hill-glassmanor, MD>Potomac, MD>Rockville, MD>Silver Spring, MD>South Laurel, MD>St. Charles, MD>Suitland, MD>Waldorf, MD>Wheaton-glenmont, MD>White Oak, MD | |