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US area code · Maryland

Area code 227

Where the 227 area code is, its overlay and how to dial a +1 227 number from anywhere.

CoversMarylandTime zoneEastern (ET)TypeOverlay
Quick answer

The 227 area code is in Maryland, United States (Eastern (ET)). To call from abroad: +1 227 555-0123. It is an overlay, so all 10 digits are dialled.

StateMaryland
Time zoneEastern (ET)
TypeOverlay
10-digit dialingRequired
In service since17-Jan-2001

The 227 area code is a geographic North American Numbering Plan (NANP) code covering Maryland. It has been in service since 17-Jan-2001 and sits in the Eastern (ET) time zone.

Overlay 227 shares its region

Several area codes cover the same geographic area, so two neighbours can have different codes. Because of the overlay, you must dial all 10 digits (area code + number) even for local calls.

227240301

How to dial a 227 number

From abroad+1 227 555-0123
Within the US / Canada1 227 555-0123
Locally (same area)227 555-0123

Other Maryland area codes

240301410443667

Frequently asked questions

Where is the 227 area code?

The 227 area code is in Maryland, United States (Eastern (ET)).

Is 227 an overlay area code?

Yes. 227 overlays the same region as 240, 301, so callers dial all 10 digits.

Do I have to dial 10 digits for 227?

Yes — dial the area code plus the seven-digit number.

How do I call a 227 number from another country?

Dial your exit code (or +), then 1, then 227, then the number: +1 227 555-0123.

Source: NANPA numbering plan. An area code covers a region, not a precise address — a 227 number does not pinpoint a street or ZIP code.

Missed a call from +1 227?

In the 30 days to September 24, 2026, 189 unwanted calls showing a 227 number were reported to the US Federal Trade Commission, 41% of them recorded messages or robocalls. That puts 227 at #337 of 670 area codes reported.

Other112
Dropped call or no message36
Calls pretending to be government, businesses, or family and friends9
Medical & prescriptions7
Before you call back
  • If you do not know anyone in Maryland, do not call back: a genuine caller will leave a message or send a text.
  • Scammers fake the number shown on caller ID, so a 227 number can hide a caller anywhere in the world.
  • Never give a code received by text or a bank detail to an unknown caller. In the US, calls can be reported at reportfraud.ftc.gov.

Who issues +1 227 numbers

Phone companies hold blocks of numbers in each area code. The main holders in 227:

Onvoy, LLC 38New Cingular Wireless PCS, LLC 37Omnipoint Communications Cap Operations, LLC 22Multiple Ocn Listing 9Cellco Partnership Dba Verizon Wireless 9Commio, LLC 7

About 30.3% of the 152 prefixes in use belong to mobile carriers: a 227 number is often a cell phone, and it may have moved to another carrier since.

Sources: FTC Do Not Call reported calls (numbers as reported by consumers, not verified), NANPA central office code assignments.

All US area codes United States +1 Map of area code 227 — cities & rate centres