227 area code
Washington area, Eastern Time.Area code 227 covers Washington, Myersville, Laurel and 46 more places in Maryland, on Eastern Time. 240 and 301 cover the same area.
Right now in Myersville
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer)
Calling hours: Every day, 8 AM to 8 PM (Maryland law)
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Where 227 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 227 has 49. Each one's share is how many 227 numbers start there. Its biggest metro area is Washington-Arlington-Alexandria, DC-VA-MD-WV.
- Washington48%
- Myersville9%
- Laurel7%
- Frederick5%
- Ashton 2365%
- Gaithersburg5%
- Waldorf4%
- Hagerstown2%
Also: Leonardtown, Cumberland, Oakland, Hughesville, Mechanicsville, Ashton 238, Mount Airy, Ridge, Keedysville, Middletown, Friendsville, Grantsville + 29 more
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call a 227 number?
Sales calls to homes and cell phones have legal hours, set by Maryland law. Hold every 227 number to them, since you can't tell a work line from a personal cell.
What applies to 227Every day, 8 AM to 8 PM
- Federal (TCPA and FTC rule)Every day, 8 AM to 9 PMCalls to residential and mobile numbers. Most calls to businesses are exempt from the FTC's rule.47 CFR 64.1200(c)(1); 16 CFR 310.4(c) (opens in a new tab)
- Maryland lawEvery day, 8 AM to 8 PMAlso no more than 3 calls in 24 hours on the same subject.Md. Code, Com. Law 14-4502(c) (opens in a new tab)
Local time comes from the area code, not from where the person is today. Mobiles keep their number when they move. Calling hours here are a guide, not legal advice. Every state's calling hours, with sources
227 and 240 and 301
227 went into service on June 14, 2023. 227, 240 and 301 cover the same area, so new numbers can get any of them and neighbors can have different area codes. 227 holds 8% of the area's exchanges; 240 holds the most. Local calls take all 10 digits.
- 1947301 overlay
- 1997240 overlay
- 2023227 starts
Source: NANPA area code database
Other Maryland area codes
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227 area code FAQ
What area code is 227?
227 is a Maryland area code for Washington, Myersville, Laurel, Frederick and 45 more places.
What time zone is the 227 area code in?
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer).
Is 240 the same as 227?
Same area, different code. 227, 240 and 301 cover the same area (an overlay), so new numbers can get any of them and local calls take all 10 digits.
What are the calling hours for 227 numbers?
Every day, 8 AM to 8 PM, local time, under Maryland law.
When did the 227 area code start?
On June 14, 2023.
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