Where is Area Code 301?
Area code 301 is located in the state of Maryland. It serves a variety of regions, counties, and major cities, providing essential telecommunication services to residents and businesses. The area code covers:
- Montgomery County
- Prince George's County
- Frederick County
- Charles County
- St. Mary's County
Major cities within the 301 area code include:
- Rockville
- Germantown
- Frederick
- Gaithersburg
- Waldorf
- Bowie
For more detailed information about the regions covered by area code 301, visit the Maryland Public Service Commission.
Maryland Public Service Commission
William Donald Schaefer Tower, 6 St. Paul St., Baltimore, MD 21202 - 6806
Tel: (410) 767-8000 or 1-800-492-0474 (toll-free)
What time zone is 301 area code in the USA?
The 301 area code is situated in the Eastern Time Zone (ET) of the United States. This time zone observes Eastern Standard Time (EST) during the fall and winter months and switches to Eastern Daylight Time (EDT) in the spring and summer months, in accordance with daylight saving time practices. For accurate timekeeping, refer to the National Institute of Standards and Technology.
History of the 301 Area Code
The 301 area code was one of the original area codes established in 1947 as part of the North American Numbering Plan. Initially, it covered the entire state of Maryland. Over time, due to the increasing demand for telephone numbers, the area code underwent several changes:
- In 1991, area code 410 was introduced to serve the eastern part of Maryland, effectively splitting the state into two area codes.
- In 1997, area code 240 was overlaid on the 301 area code to accommodate the growing need for additional numbers.
These changes were implemented to ensure that residents and businesses in Maryland could continue to access new telephone numbers as needed. For more historical details, visit the North American Numbering Plan Administrator (NANPA).
NANPA Mailing Address
One Tower Center Boulevard
Suite 800
East Brunswick, NJ 08816
NANPA Customer Support
Tel: 1-866-623-2282
Email: support@nanpa.com
Fax: 571-363-3838
How Many People Use the 301 Area Code?
The 301 area code serves a significant portion of Maryland's population. The regions covered by this area code are home to millions of residents, contributing to the state's overall population. For detailed demographic information, consult the U.S. Census Bureau.
U.S. Census Bureau
4600 Silver Hill Road, Washington, DC 20233
Tel: 301-763-INFO (4636) or 800-923-8282
Is the 301 Area Code Toll-Free?
The 301 area code is a geographic area code, not a toll-free number. It is designated for specific regions within Maryland and is used for local and long-distance calls within the United States. Toll-free numbers, which are not tied to a specific geographic location, typically use prefixes such as 800, 888, 877, 866, 855, 844, and 833. For more information on toll-free numbers, visit the Federal Communications Commission.
Federal Communications Commission
45 L Street NE, Washington, DC 20554
Tel: 1-888-CALL FCC (225-5322)
https://www.fcc.gov/