U.S. state

Maryland area codes

Maryland has 6 area codes in service in 2 separate areas: some codes split the map, others overlay it. The newest is 227 (since June 14, 2023).

Local time in Maryland

—

Eastern Time ·

Spam reports from Sep 23 – Oct 22, 2026

2,616 FTC complaints

Most reported: 443 Baltimore (704)

Consumer reports, not verified by the FTC.

By area code

Codes6
Code areas2
Newest227 · 2023
ComingNone listed
Time zoneEastern Time

The 2 code areas

Codes in one card share the same territory (overlay). FTC reports from Sep 23 – Oct 22, 2026; runs out: NANPA forecast.

Code areas of Maryland
Codes	Main place	FTC reports	Runs out	Codes
410 443 667	Baltimore, MD	1,575	2036	3
227 240 301	Frederick & Montgomery County, MD	1,041	2041	3

All 6 codes
Code	Main place	Since	Overlay with	Runs out	FTC reports
227	Maryland	Jun 14, 2023	240, 301	2041	68
240	Frederick & Montgomery County, MD	Jun 1, 1997	227, 301	2041	529
301	Frederick & Montgomery County, MD	1947	240, 227	2041	444
410	Baltimore, MD	Oct 6, 1991	443, 667	2036	561
443	Baltimore, MD	Jun 1, 1997	410, 667	2036	704
667	Baltimore, MD	Mar 24, 2012	410, 443	2036	310

Source: NANPA NRUF forecast, April 2026 edition.

Consumer reports, not verified by the FTC · source

Source: FTC Do Not Call complaints created Sep 23 – Oct 22, 2026. They are reported by consumers and are not verified by the FTC; caller ID can be spoofed (how we count).

Spam call reports by area code

FTC complaints, Sep 23 – Oct 22, 2026

FTC complaints by area code in Maryland
Area code	Complaints
443 Baltimore	704
410 Baltimore	561
240 Frederick & Montgomery County	529
301 Frederick & Montgomery County	444
667 Baltimore	310
227	68

Consumer reports, not verified by the FTC · source

Source: FTC Do Not Call complaints created Sep 23 – Oct 22, 2026. They are reported by consumers and are not verified by the FTC; caller ID can be spoofed (how we count).

Changes coming

NANPA lists no relief planning or new code for Maryland.

Source: NANPA, NPA database of Oct 24, 2026.