339 area code
Lynn area, Eastern Time.Area code 339 covers Lynn, Weymouth, Bryantville and 37 more places in Massachusetts, on Eastern Time. 781 covers the same area.
Right now in Lynn
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer)
Calling hours: Every day, 8 AM to 8 PM (Massachusetts law)
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Where 339 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 339 has 40. Each one's share is how many 339 numbers start there. Its biggest metro area is Boston-Cambridge-Newton, MA-NH.
- Lynn9%
- Weymouth7%
- Bryantville7%
- Saugus6%
- Lexington5%
- Woburn5%
- Medford5%
- Randolph4%
- Needham3%
- Arlington3%
- Norwell3%
- Hanover3%
Also: Marshfield, Sharon, Marblehead, Duxbury, Waltham, Burlington, Dedham, Braintree, Canton, Wakefield, Revere, Rockland + 16 more
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call a 339 number?
Sales calls to homes and cell phones have legal hours, set by Massachusetts law. Hold every 339 number to them, since you can't tell a work line from a personal cell.
What applies to 339Every day, 8 AM to 8 PM
- Federal (TCPA and FTC rule)Every day, 8 AM to 9 PMCalls to residential and mobile numbers. Most calls to businesses are exempt from the FTC's rule.47 CFR 64.1200(c)(1); 16 CFR 310.4(c) (opens in a new tab)
- Massachusetts lawEvery day, 8 AM to 8 PMM.G.L. c. 159C §3 (opens in a new tab)
Local time comes from the area code, not from where the person is today. Mobiles keep their number when they move. Calling hours here are a guide, not legal advice. Every state's calling hours, with sources
339 and 781
339 went into service on May 2, 2001. 339 and 781 cover the same area, so new numbers can get either code and neighbors can have different area codes. 339 holds 12% of the area's exchanges; 781 holds the most. Local calls take all 10 digits.
- 1997781 overlay
- 2001339 starts
Source: NANPA area code database
Calling a list of 339 numbers?
Paste it into the free phone number validator. It checks every number, finds each one's time zone and sorts the list by who you can call right now.
339 area code FAQ
What area code is 339?
339 is a Massachusetts area code for Lynn, Weymouth, Bryantville, Saugus and 36 more places.
What time zone is the 339 area code in?
Eastern Time (EST, UTC-5; EDT, UTC-4 in summer).
Is 781 the same as 339?
Same area, different code. 339 and 781 cover the same area (an overlay), so new numbers can get any of them and local calls take all 10 digits.
What are the calling hours for 339 numbers?
Every day, 8 AM to 8 PM, local time, under Massachusetts law.
When did the 339 area code start?
On May 2, 2001.
Calling 339 numbers? Reach more of them.
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