District of Maryland area codes: 301 | |
---|---|
Country | United States |
State/Province | Maryland |
Major City | Baltimore |
Time Zone | Eastern (UTC-05:00) |
Prefix | County | Primary City | Company |
---|---|---|---|
301-325 | Montgomery | Silver Spring, MD | Cellco Partnership DBA Verizon Wireless |
301-326 | Montgomery | Silver Spring, MD | Omnipoint Communications Cap Operations |
301-327 | Prince Georges | Upper Marlboro, MD | Comcast Phone Of Northern Maryland |
301-328 | Montgomery | Silver Spring, MD | Comcast Phone Of Northern Maryland |
301-329 | Prince Georges | Greenbelt, MD | Cavalier Telephone Mid-atlantic |
301-330 | Montgomery | Gaithersburg, MD | Verizon Maryland |
301-331 | Washington | Hagerstown, MD | New Cingular Wireless PCS - DC |
301-332 | Montgomery | Silver Spring, MD | New Cingular Wireless PCS - DC |
301-333 | Prince Georges | Capitol Heights, MD | Verizon Maryland |
301-334 | Garrett | Oakland, MD | Verizon Maryland |
301-335 | Montgomery | Bethesda, MD | New Cingular Wireless PCS - DC |
301-336 | Prince Georges | Capitol Heights, MD | Verizon Maryland |
301-337 | Montgomery | Gaithersburg, MD | Mci Worldcom Communications |
301-338 | Allegany | Cumberland, MD | Idt America Corp |
301-339 | Montgomery | Rockville, MD | Cavalier Telephone Mid-atlantic |
301-340 | Montgomery | Rockville, MD | Verizon Maryland |
301-341 | Prince Georges | Hyattsville, MD | Verizon Maryland |
301-342 | Saint Marys | Patuxent River, MD | Verizon Maryland |
301-343 | Prince Georges | Capitol Heights, MD | Sprint Spectrum L.p. |
301-344 | Prince Georges | Greenbelt, MD | Verizon Maryland |
There are 775 prefixes, In the code area, the major cities are Aspen Hill, MD;Bethesda, MD;Bowie, MD;Chillum, MD;. The major city is Baltimore.