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Where Is 227 Area Code?

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Database Updated: August 7, 2025
Maryland Phone Number Lookups
Where Is 227 Area Code?

Where is Area Code 227?

Area code 227 is located in the state of Maryland. It serves several major cities, counties, and regions, providing essential telecommunication services to residents and businesses. The area code covers:

  • Montgomery County
  • Prince George's County
  • Frederick County
  • Charles County
  • Calvert County

For more information about the regions covered by area code 227, 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 227 area code in the USA?

The 227 area code is situated in the Eastern Time Zone (ET). This time zone observes daylight saving time, shifting from Eastern Standard Time (EST) to Eastern Daylight Time (EDT) during the warmer months. For accurate timekeeping, refer to the National Institute of Standards and Technology.

History of the 227 Area Code

The 227 area code was introduced to address the growing demand for telephone numbers in Maryland. It was created as an overlay to the existing 240 and 301 area codes, ensuring that new numbers could be assigned without disrupting existing services. The overlay method was chosen to avoid the need for residents and businesses to change their existing phone numbers. For more details on the history and administration of area codes, consult 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 227 Area Code?

The population served by the 227 area code encompasses several counties in Maryland, contributing to a diverse and vibrant community. The U.S. Census Bureau provides detailed demographic information for these regions. For comprehensive population statistics, visit 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 227 Area Code Toll-Free?

The 227 area code is a geographic area code, not a toll-free number. It is designated for specific regions within Maryland and follows the standard dialing procedures for local and long-distance calls. Toll-free numbers in the United States typically begin with prefixes such as 800, 888, 877, 866, 855, 844, and 833. For more information on toll-free numbers and their operation, refer to 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/

Maryland Phone Numbers
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