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US area code · Massachusetts

Area code 339

Where the 339 area code is, its overlay and how to dial a +1 339 number from anywhere.

CoversArlington, MassachusettsTime zoneEastern (ET)TypeOverlay
Quick answer

The 339 area code is in Arlington, Massachusetts, United States (Eastern (ET)). To call from abroad: +1 339 555-0123. It is an overlay, so all 10 digits are dialled.

StateMassachusetts
Main areaArlington
Time zoneEastern (ET)
TypeOverlay
10-digit dialingRequired
In service since03-May-2000

The 339 area code is a geographic North American Numbering Plan (NANP) code covering Arlington, Massachusetts. It has been in service since 03-May-2000 and sits in the Eastern (ET) time zone.

Overlay 339 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.

339781

How to dial a 339 number

From abroad+1 339 555-0123
Within the US / Canada1 339 555-0123
Locally (same area)339 555-0123

Cities in the 339 area code

A 339 number is usually in one of these places in Massachusetts — 4 counties.

Arlington MiddlesexBraintree NorfolkBurlington MiddlesexDedham NorfolkLexington MiddlesexLynn EssexMalden MiddlesexMarblehead EssexMedford MiddlesexMelrose MiddlesexNeedham NorfolkNorwood NorfolkRandolph NorfolkReading MiddlesexRevere SuffolkSaugus EssexStoneham MiddlesexWakefield MiddlesexWaltham MiddlesexWellesley NorfolkWeymouth NorfolkWinchester MiddlesexWoburn Middlesex

Other Massachusetts area codes

351413508617774781857978

Frequently asked questions

Where is the 339 area code?

The 339 area code is in Arlington, Massachusetts, United States (Eastern (ET)).

Is 339 an overlay area code?

Yes. 339 overlays the same region as 781, so callers dial all 10 digits.

Do I have to dial 10 digits for 339?

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

How do I call a 339 number from another country?

Dial your exit code (or +), then 1, then 339, then the number: +1 339 555-0123.

Source: NANPA numbering plan. An area code covers a region, not a precise address — a 339 number does not pinpoint a street or ZIP code.

Missed a call from +1 339?

In the 30 days to September 24, 2026, 113 unwanted calls showing a 339 number were reported to the US Federal Trade Commission, 69% of them recorded messages or robocalls. That puts 339 at #369 of 670 area codes reported.

Other42
Reducing your debt (credit cards, mortgage, student loans)28
Calls pretending to be government, businesses, or family and friends19
Dropped call or no message3
Before you call back
  • If you do not know anyone in Massachusetts, 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 339 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 +1 339 numbers

Phone companies hold blocks of numbers in each area code. The main holders in 339:

Cellco Partnership Dba Verizon Wireless 22Onvoy, LLC 18Paetec Itel, LLC 11Multiple Ocn Listing 9Level 3 Communications, LLC 8Ton80 Communications, LLC 7

About 20.5% of the 122 prefixes in use belong to mobile carriers: a 339 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 339 — cities & rate centres