339 area code
Where the 339 area code is, its overlay and how to dial a +1 339 number from anywhere.
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.
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.
How to dial a 339 number
+1 339 555-01231 339 555-0123339 555-0123Cities in the 339 area code
A 339 number is usually in one of these places in Massachusetts — 4 counties.
Other Massachusetts area codes
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:
| Company | Prefixes | Share |
|---|---|---|
| Cellco Partnership Dba Verizon Wireless | 22 | 18% |
| Onvoy, LLC | 18 | 15% |
| Paetec Itel, LLC | 11 | 9% |
| Multiple Ocn Listing | 9 | 7% |
| Level 3 Communications, LLC | 8 | 7% |
| Ton80 Communications, LLC | 7 | 6% |
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