Cumberland, Maryland
Eastern Time Zone (UTC-5) · MD · —
301
⬡ 1947
Silver Spring
Maryland
Eastern
+1
240
1997
Germantown
Maryland
Eastern
Overlay
227
2023
Silver Spring
Maryland
Eastern
Overlay
About Area Codes in Cumberland, Maryland
Cumberland, Maryland is served by 3 area codes: 301, 240, 227. When multiple area codes serve the same geographic area, it typically indicates overlay codes have been added to accommodate growing demand for phone numbers. All local calls within Cumberland require 10-digit dialing. The city is in the Eastern time zone (UTC-5).
Other cities in area code 301
Frequently Asked Questions
What area code is Cumberland, Maryland?
Cumberland, Maryland uses area codes 301 and 240 and 227.
What time zone is Cumberland in?
Cumberland is in the Eastern time zone (UTC-5).
Do I need to dial 10 digits when calling Cumberland?
Yes, all local calls in Cumberland require 10-digit dialing because the area is served by multiple overlay area codes.
When was area code 301 created?
Area code 301 is one of the original 86 area codes established in 1947 as part of the North American Numbering Plan (NANP).
What cities share area code 301 with Cumberland?
Other cities sharing area code 301 with Cumberland include Bethesda, Bowie, College Park, Frederick, Gaithersburg, among others.
Also called Cumberland:
Cumberland, MD · Eastern Time Zone