Area Code 301 — Maryland
Area code 301 is located in Maryland and operates on Eastern Time . The largest city served is Frederick .
Coverage Area
Area code 301 — MarylandArea Code Details
- Area Code
- 301
- State / Province
- Maryland (MD)
- Country
- United States
- Time Zone
- Eastern Time Eastern Time
- Local Time Now
- —
- Status
- Active
- Code Type
- General Purpose Code
- In Service Since
- January 1, 1947
- Assigned
- January 1, 1947
- Population Served
- ~187,943 est.
- Overlay Complex
- 240/227/301
Cities Served
History & Relationships
New codes split from 301
Rate Centers & Exchanges
17 rate centers identified within area code 301
Other Area Codes in Maryland
View all →Nearby Area Codes
Frequently Asked Questions About Area Code 301
What state is area code 301?
Area code 301 is located in Maryland, United States.
Where is area code 301 from?
Area code 301 originates from Maryland. It operates in the Eastern Time zone.
What time zone is area code 301?
Area code 301 falls within the Eastern Time zone (Eastern Time).
What cities are in area code 301?
Area code 301 serves cities including Frederick, Gaithersburg, Hagerstown, Brandywine, Indian Head, Washington Zone 13, Washington Zone 10, Ashton, and more.
Is a call from area code 301 a scam?
Area code 301 is a legitimate general purpose code area code serving Maryland. Like any area code, individual numbers using 301 can be used for scam calls — always verify the specific number if you receive an unexpected or suspicious call.