Where is the 227 area code?

Area code 227 covers Maryland, on Eastern Time.

What time zone is area code 227 in?

Numbers in the 227 area code sit in Eastern Time.

Is 227 a toll-free or scam area code?

No. 227 is a geographic North American Numbering Plan area code assigned to Maryland. Toll-free numbers use 800, 833, 844, 855, 866, 877 and 888. A call from 227 can still be spoofed, so treat unexpected calls with the usual caution.

Area code lookup

227 area code

Where the 227 area code is, which cities and counties it serves, the local time zone and the overlay codes dialled alongside it.

State: MD
Codes in state: 6
Overlays & neighbours: 5
Time zone: Eastern Time

Quick answer

Area code 227 is a geographic area code assigned to Maryland under the North American Numbering Plan. Maryland observes Eastern Time, and the state also holds 5 other area codes: 240, 301, 410, 443, 667.

Largest cities in Maryland

The largest places in Maryland. Each links to its full local profile: population, income, housing and sales tax.

City	Population
Baltimore city	577,193
Columbia CDP	105,871
Germantown CDP	90,521
Waldorf CDP	82,541
Silver Spring CDP	82,129
Frederick city	80,617
Ellicott City CDP	73,737
Glen Burnie CDP	72,772
Gaithersburg city	69,225
Bethesda CDP	67,403
Rockville city	67,218
Dundalk CDP	65,441

All Maryland cities All Maryland ZIP codes Maryland sales tax

Related area codes

Codes that share or border the same calling area.

227 area code FAQ

The questions people ask about this code.

Where is area code 227?

227 is a geographic area code in Maryland.

What time is it in the 227 area code?

227 observes Eastern Time.

Is 227 a scam area code?

No — it is a normal geographic code, not a toll-free or premium-rate prefix. Caller ID can be spoofed on any code, so verify unexpected callers before sharing information.

Sources & transparency

North American Numbering Plan Administrator (NANPA) area code assignments — area code to geography mapping and overlay relationships
US Census Bureau, American Community Survey 2019-2023 5-year estimates — city, county and ZIP code geography

Last reviewed August 2026. Figures are published for reference and can change; verify with the source agency before filing or contracting. How we build and check this data.