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US area code · Massachusetts

339 area code

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.

Number holders in area code 339

Each prefix (the three digits after the area code) is assigned by NANPA to one telephone company. 122 prefixes are in use in 339, shared by 25 companies. The largest holders:

CompanyPrefixesShare
Cellco Partnership Dba Verizon Wireless2218%
Onvoy, LLC1815%
Paetec Itel, LLC119%
Multiple Ocn Listing97%
Level 3 Communications, LLC87%
Ton80 Communications, LLC76%

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

Complaints about 339 numbers

Reports to the FTC, last 30 days
113
Recorded messages or robocalls
69%
Rank among area codes
#369 of 670
Most reported subjects
Other (42)
Reducing your debt (credit cards, mortgage, student loans) (28)
Calls pretending to be government, businesses, or family and friends (19)

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 339 — cities & rate centres

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