The area code 339 is located in Lynn, Massachusetts.
Area code 339 serves Lynn, Massachusetts, and the Boston suburbs on the North Shore and along the Route 128 corridor. It is an overlay of area code 781, created to add more phone numbers for fast-growing communities in Essex, Middlesex, and Norfolk counties. Lynn sits on the Atlantic coast just north of Boston, home to landmarks like Lynn Woods Reservation and the Lynn Shore & Nahant Beach Reservation. “Area code 339 was activated on May 2, 2001 as an overlay of 781.” — North American Numbering Plan Administrator (NANPA)
This overlay covers Lynn and nearby cities such as:
Because 339 overlays 781, both area codes serve the same places, and 10‑digit dialing is required for local calls. The region includes major routes like I‑95/Route 128, a hub for offices, tech firms, and retail centers around Waltham, Burlington, and Woburn. 339 works for landlines, mobile phones, and VoIP services, and numbers can be ported when you move within the area. Calls in area code 339 follow the Eastern Time Zone, which is helpful for business and scheduling across New England.