--- title: "Area code 339: Massachusetts, United States" url: "https://lookvalid.com/area-code/339.md" canonical_url: "https://lookvalid.com/area-code/339" last_updated: "2026-10-23" type: "reference" summary: "Area code 339 serves Massachusetts, United States. Number formats, numbering rules, a live phone validator and the other codes in Massachusetts." --- # Area code 339: Massachusetts, United States Area code 339 serves Massachusetts, United States. Number formats, numbering rules, a live phone validator and the other codes in Massachusetts. NANPA lists 103 central office codes (prefixes) in use in area code 339, held by 22 holders across 35 rate centers. Verizon Wireless holds the most prefixes, 22 (21%). 100% of the prefixes are pooled, which means their thousands-blocks can belong to different companies. The FCC unwanted-call data has 1,137 complaints on file for 776 numbers in 339, most often filed as "Unwanted Calls". These are consumer reports, not findings. ## Facts - In service since: 2001-05-02 - Time zone: Eastern (E) - Assigned overlays: 781 (1997-09-01) - Prefixes in use: 103 - Pooled prefixes: 103 (100%) - Rate centers: 35 - Companies holding prefixes: 22 - Assignment dates on file: 2001-03-19 to 2025-07-01 (97 prefixes) - ZIP codes in its places: 54 ## Rate centers | Rate center | Prefixes | Share | | --- | --- | --- | | LYNN | 9 | 9% | | BRYANTVL | 7 | 7% | | WEYMOUTH | 7 | 7% | | SAUGUS | 6 | 6% | | LEXINGTON | 5 | 5% | | MEDFORD | 5 | 5% | | WOBURN | 5 | 5% | | RANDOLPH | 4 | 4% | | 27 other rate centers | 55 | 53% | ## Carriers | Holder | Prefixes | Share | | --- | --- | --- | | Verizon Wireless | 22 | 21% | | Onvoy | 18 | 17% | | Paetec Itel | 11 | 11% | | Level 3 Communications | 8 | 8% | | Fractel | 7 | 7% | | Ton80 Communications | 7 | 7% | | 16 other carriers | 30 | 29% | A prefix holder is the company a code was assigned to, not necessarily a number's current carrier, because numbers can be ported to another company. ## History - 1997-09-01: Area code 781, named as the parent of 339 in the NANPA report, was in service. - 2001-05-02: Area code 339 went into service. ## Nearest area codes The area codes closest to 339, measured between the centers of the ZIP code places they serve, are 617 (about 2 miles), 857 (about 3 miles), 508 (about 17 miles), 774 (about 24 miles) and 351 (about 25 miles). ## ZIP codes 54 ZIP codes fall in places that have a rate center in this area code. The places with the most are Lynn, MA (6 ZIP codes), Waltham, MA (4 ZIP codes) and Woburn, MA (4 ZIP codes). A ZIP code and an area code are unrelated systems, so a ZIP code can sit in more than one area code and an area code spans many ZIP codes. ## Complaints on file 1,137 complaints for 776 numbers. Numbers whose latest complaint falls in each year: - 2023: 91 - 2024: 105 - 2025: 52 ## Questions ### Where is area code 339? NANPA assigns area code 339 to Massachusetts, United States. ### In which state does area code 339 sit? Massachusetts. 339 is one of 9 area codes the NANPA table assigns to the state. ### Which places does area code 339 cover? The places with the most ZIP codes among the rate centers in 339 are Lynn, MA, Waltham, MA and Woburn, MA. The rate center list on this page shows all of them. ### Who owns area code 339? NANPA assigns area codes. Within 339, Verizon Wireless holds the most prefixes, 22 prefixes or 21%. ### Which time zone does 339 use? The NANPA NPA report lists the time zone for 339 as Eastern (E). ### What year did 339 enter service? The NANPA NPA report gives an in-service date of 2001-05-02, so 339 has been in use since 2001. ### Does area code 339 have an overlay? Yes. 781 (in service 1997-09-01) shares the same area with 339, so numbers from all of them are local to each other. ### Which area codes are nearest to 339? The area codes closest to 339, measured between the centers of the ZIP code places they serve, are 617 (about 2 miles), 857 (about 3 miles), 508 (about 17 miles), 774 (about 24 miles) and 351 (about 25 miles). ### How many prefixes does area code 339 have? NANPA's report dated 2026-10-17 lists 103 prefixes in service in 339, spread over 35 rate centers and 22 holders. ### Are there complaints about 339 numbers? The FCC data on file has 1,137 complaints for 776 numbers in 339. They are unverified consumer reports. A number with no complaints on file is not proven safe. Sources: NANPA central office code report dated 2026-10-17; NANPA NPA report dated 2026-10-18; FCC unwanted-call complaints, data fetched 2026-10-17; ZIP code places from GeoNames (CC BY 4.0).