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 |
---|---|---|---|
301-345 | Prince Georges | Greenbelt, MD | Verizon Maryland |
301-346 | Montgomery | Silver Spring, MD | New Cingular Wireless PCS - DC |
301-347 | Montgomery | Chevy Chase, MD | Verizon Maryland |
301-348 | Montgomery | Kensington, MD | Mci Worldcom Communications |
301-349 | Montgomery | Poolesville, MD | Verizon Maryland |
301-350 | Prince Georges | Capitol Heights, MD | Verizon Maryland |
301-351 | Montgomery | Silver Spring, MD | Cellco Partnership DBA Verizon Wireless |
301-352 | Prince Georges | Bowie, MD | Verizon Maryland |
301-353 | Montgomery | Gaithersburg, MD | Verizon Maryland |
301-354 | Montgomery | Rockville, MD | Teleport Communications America - DC |
301-355 | Montgomery | Gaithersburg, MD | Verizon Maryland |
301-356 | Prince Georges | Laurel, MD | Vdl DBA Global Telecom Brokers |
301-357 | Prince Georges | Mount Rainier, MD | Cellco Partnership DBA Verizon Wireless |
301-358 | Prince Georges | Upper Marlboro, MD | Level 3 Communications |
301-359 | Allegany | Westernport, MD | Verizon Maryland |
301-360 | Frederick | Frederick, MD | Verizon Maryland |
301-361 | Prince Georges | Laurel, MD | Tw Telecom Of Maryland LLC |
301-362 | Prince Georges | Laurel, MD | Verizon Maryland |
301-363 | Montgomery | Damascus, MD | Level 3 Communications |
301-364 | Prince Georges | Hyattsville, MD | Mci Worldcom Communications |
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.