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US area code · Maryland

Area code 443

Where the 443 area code is, its overlay and how to dial a +1 443 number from anywhere.

CoversAnnapolis, MarylandTime zoneEastern (ET)TypeOverlay
Quick answer

The 443 area code is in Annapolis, Maryland, United States (Eastern (ET)). To call from abroad: +1 443 555-0123. It is an overlay, so all 10 digits are dialled.

StateMaryland
Main areaAnnapolis
Time zoneEastern (ET)
TypeOverlay
10-digit dialingRequired
In service since21-Jun-1996

The 443 area code is a geographic North American Numbering Plan (NANP) code covering Annapolis, Maryland. It has been in service since 21-Jun-1996 and sits in the Eastern (ET) time zone.

Overlay 443 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.

443410667

How to dial a 443 number

From abroad+1 443 555-0123
Within the US / Canada1 443 555-0123
Locally (same area)443 555-0123

Cities in the 443 area code

A 443 number is usually in one of these places in Maryland — 6 counties.

Annapolis Anne ArundelArbutusArnold Anne ArundelBaltimore Anne Arundel;Baltimore;Baltimore CityBel Air NorthBel Air SouthCarneyCatonsville BaltimoreColumbia HowardCrofton Anne ArundelDundalk BaltimoreEdgewood HarfordEldersburgEllicott City HowardEssex BaltimoreGlen Burnie Anne ArundelLochearnMiddle River BaltimoreMilford MillOdenton Anne ArundelParkville BaltimorePerry Hall BaltimorePikesville BaltimoreRandallstown BaltimoreReisterstown BaltimoreSalisbury WicomicoSevern Anne ArundelSeverna Park Anne ArundelSouth GateTowson BaltimoreWest Elkridge

Other Maryland area codes

227240301410667

Frequently asked questions

Where is the 443 area code?

The 443 area code is in Annapolis, Maryland, United States (Eastern (ET)).

Is 443 an overlay area code?

Yes. 443 overlays the same region as 410, 667, so callers dial all 10 digits.

Do I have to dial 10 digits for 443?

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

How do I call a 443 number from another country?

Dial your exit code (or +), then 1, then 443, then the number: +1 443 555-0123.

Source: NANPA numbering plan. An area code covers a region, not a precise address — a 443 number does not pinpoint a street or ZIP code.

Missed a call from +1 443?

In the 30 days to September 24, 2026, 603 unwanted calls showing a 443 number were reported to the US Federal Trade Commission, 59% of them recorded messages or robocalls. That puts 443 at #136 of 670 area codes reported.

Other275
Dropped call or no message92
Calls pretending to be government, businesses, or family and friends59
Reducing your debt (credit cards, mortgage, student loans)56
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 443 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 +1 443 numbers

Phone companies hold blocks of numbers in each area code. The main holders in 443:

Paetec Itel, LLC 153Cellco Partnership Dba Verizon Wireless 121Omnipoint Communications Cap Operations, LLC 94New Cingular Wireless PCS, LLC 71Level 3 Communications, LLC 69Verizon Maryland, Inc. 56

About 24% of the 800 prefixes in use belong to mobile carriers: a 443 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 443 — cities & rate centres