Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — AREA-CODE/339

339 area code

Area code 339 is in Massachusetts. It covers Lynn, Malden, Waltham and 54 other places: 74 ZIP codes in Middlesex, Norfolk, Plymouth and 2 other counties. Local time there is , Eastern Time. In service since 2001 as an overlay: it covers the same area as 781, so a number from there can have either code.

Time zone
Eastern
Largest city
Lynn
Overlays
781
In service since
2001
Rate centres
35
Prefixes assigned
105 (1,050,000 numbers)

Who calls from a 339 number

NANPA records the carrier each block of 339 numbers is assigned to. Of the 1.0 million 339 numbers assigned, 67% are with cable, internet-calling, business and other carriers (Onvoy, Level 3 and Bandwidth); 32% with mobile carriers (Verizon Wireless, T-Mobile and AT&T Mobility).

That is who the numbers were assigned to: people keep their number when they change carrier, so any one number may have moved since.

Carriers holding the most 339 numbers
CarrierKindShare
OnvoyCable, VoIP, other31%
Verizon WirelessMobile17%
T-MobileMobile7%
Level 3Cable, VoIP, other7%
BandwidthCable, VoIP, other6%
AT&T MobilityMobile6%

An area code says where a number was issued, not where the caller is: people keep their numbers when they move, and caller ID can be set to show any number, which the FCC calls spoofing. If a call you did not expect asks for money or personal details, the FCC advises hanging up and calling the company back on a number you look up yourself. Unwanted calls can be reported to the FTC at ReportFraud.ftc.gov.

Places in area code 339

The 35 places with a telephone rate centre of their own using 339, largest first. Each links to its ZIP codes.

Places in area code 339
PlaceZIP codesPopulation
Lynn, MA 6 101,709
Malden, MA 1 65,906
Waltham, MA 4 64,902
Revere, MA 1 60,012
Medford, MA 2 59,354
Weymouth, MA 1 58,505
Arlington, MA 2 46,350
Woburn, MA 4 41,939
Braintree, MA 2 38,899
Randolph, MA 1 34,878
Lexington, MA 2 34,295
Needham, MA 1 32,459
Norwood, MA 1 31,542
Wellesley, MA 1 30,347
Melrose, MA 1 29,650
Saugus, MA 1 28,773
Wakefield, MA 1 27,793
Burlington, MA 2 26,274
Dedham, MA 2 25,237
Canton, MA 1 24,748
Marblehead, MA 1 20,413
Rockland, MA 1 17,701
Whitman, MA 1 15,295
Hanover, MA 2 14,845
Norwell, MA 1 11,361
Hull, MA 1 10,138
Cohasset, MA 1 8,427
Sharon, MA 1 6,232
Kingston, MA 1 5,910
Scituate, MA 1 5,796
Marshfield, MA 1 5,161
Hingham, MA 2 5,130
Lincoln, MA 1 4,891
Duxbury, MA 2 1,994
Bryantville, MA 1 —

Nearby places using 339

These places have no rate centre of their own in NANPA's records; the nearest one uses 339. Near an area-code boundary that can be wrong for part of a town.

ZIP codes in area code 339

74 ZIP codes in 54 towns, by the town each is mailed to, largest first. Each links to its own page.

Where 339 numbers are issued

NANPA's rate centres with the most 339 prefixes (each prefix is 10,000 numbers), under NANPA's own abbreviated names.

Rate centres using area code 339
Rate centrePlacePrefixes
LYNN Lynn 9
BRYANTVL Bryantville 7
WEYMOUTH Weymouth 7
SAUGUS Saugus 6
LEXINGTON Lexington 5
MEDFORD Medford 5

Counties

The counties of its ZIP codes, most residents first, with how many of its ZIP codes each has.

Which code covers where you are now? What area code am I in? answers from your location.

Questions about area code 339

Where is area code 339?

Area code 339 is in Massachusetts. It covers Lynn, Malden, Waltham and 54 other places: 74 ZIP codes in Middlesex, Norfolk, Plymouth and 2 other counties.

What ZIP codes are in area code 339?

74 ZIP codes, by the town each is mailed to: Lynn (6, 01901 to 01910), Malden (02148), Waltham (4, 02451 to 02454), Revere (02151) and 50 more towns. The full list is on this page.

What time zone is area code 339 in?

Eastern time.

Is a 339 number a mobile or a landline?

It can be either. 32% of 339 numbers are assigned to mobile carriers and under 1% to local phone companies (NANPA, 2026-10-10); the rest are with cable, internet-calling, business and paging carriers. A number keeps its area code when it moves to another carrier.

What area codes overlay 339?

781. They cover the same area as 339, so a new number there can be given any of them.

Does a 339 number mean the caller is in Massachusetts?

Not necessarily. An area code says where the number was first issued. People keep their numbers when they move or switch carriers, and calling software can show any number, so a 339 call can come from anywhere.

Other area codes in Massachusetts

All 9 Massachusetts area codes, by area, with the cities each covers

Source: NANPA NPA database, central office code and thousands-block assignments, 2026-10-10. Places are matched to NANPA's rate centres by name; see sources.

Cite this page

zipcodes.pro. “Area code 339.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/area-code/339

Underlying data is public domain or openly licensed — sources, vintages and licences.