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US area code · Maryland

410 area code

Where the 410 area code is, its overlay and how to dial a +1 410 number from anywhere.

CoversAnnapolis, MarylandTime zoneEastern (ET)TypeOverlay
Quick answer

The 410 area code is in Annapolis, Maryland, United States (Eastern (ET)). To call from abroad: +1 410 555-0123. It is an overlay, so all 10 digits are dialled.

StateMaryland
Main areaAnnapolis
Time zoneEastern (ET)
TypeOverlay
10-digit dialingRequired
In service since28-Dec-1990

The 410 area code is a geographic North American Numbering Plan (NANP) code covering Annapolis, Maryland. It has been in service since 28-Dec-1990 and sits in the Eastern (ET) time zone.

Overlay 410 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.

410301443667

How to dial a 410 number

From abroad+1 410 555-0123
Within the US / Canada1 410 555-0123
Locally (same area)410 555-0123

Cities in the 410 area code

A 410 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

227240301443667

Frequently asked questions

Where is the 410 area code?

The 410 area code is in Annapolis, Maryland, United States (Eastern (ET)).

Is 410 an overlay area code?

Yes. 410 overlays the same region as 301, 443, 667, so callers dial all 10 digits.

Do I have to dial 10 digits for 410?

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

How do I call a 410 number from another country?

Dial your exit code (or +), then 1, then 410, then the number: +1 410 555-0123.

Source: NANPA numbering plan. An area code covers a region, not a precise address — a 410 number does not pinpoint a street or ZIP code.

Number holders in area code 410

Each prefix (the three digits after the area code) is assigned by NANPA to one telephone company. 800 prefixes are in use in 410, shared by 29 companies. The largest holders:

CompanyPrefixesShare
Verizon Maryland, Inc.51064%
Cellco Partnership Dba Verizon Wireless537%
New Cingular Wireless PCS, LLC516%
Mcimetro Access Transmission Services LLC456%
Spok, Inc.284%
Omnipoint Communications Cap Operations, LLC223%

Source: NANPA central office code assignments. A number keeps its original prefix when it is ported to another carrier.

Complaints about 410 numbers

Reports to the FTC, last 30 days
543
Recorded messages or robocalls
72%
Rank among area codes
#167 of 670
Most reported subjects
Other (183)
Dropped call or no message (155)
Calls pretending to be government, businesses, or family and friends (42)

Period Aug 26 – Sep 24, 2026. These are the numbers shown on the caller ID of the reported calls; many are spoofed and do not belong to the real caller.

Source: US Federal Trade Commission, Do Not Call reported calls data (daily files).

All US area codes United States +1 Map of area code 410 — cities & rate centres

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