United States · Massachusetts
339 Area Code
Area code 339 serves Boston and surrounding communities in Massachusetts, United States. Numbers that start with 339 follow Eastern time. Enter the full number in the lookup panel to see the carrier, line type and scam risk before you call back.
- Location
- Boston, MA
- Local time
- —Eastern · GMT-4
- Dialing
- +1 339 XXX XXXX
- LineMobile
- CarrierT-Mobile USA
- LocationSan Francisco, CA
- Caller nameNot published
- RiskLow risk· 3 reports
Cities and communities in 339
339 is centred on Boston. The same area is also served by 617 and 857, so a Boston business or resident may have a number under any of these codes.
A geographic area code tells you where a number was issued, not where the phone is today. People keep their numbers when they move, and businesses buy local numbers to look nearby. Use it as a starting point, then confirm with the carrier and line type from a lookup.
Most reported 339 numbers
No reports yet for 339 numbers. Be the first to flag a number that called you.
Got a call from a 339 number that is not listed? Add it on the Who Called Me page. Reports show up here and on every lookup within minutes.
Common scam calls from 339 numbers
Scam callers rotate through local-looking numbers because people answer them more often. These are the patterns reported most often across North America and seen with 339 caller IDs.
- "the IRS or Social Security" threats. A recorded voice claims a warrant or unpaid tax bill and demands payment by gift card or wire. Government agencies do not call from 339 numbers to demand instant payment.
- Bank fraud alerts. A caller pretends to be the fraud desk of a bank with branches in Boston and asks you to "verify" a card number or one-time code. Hang up and call the number on the back of your card.
- Local-looking spoofed numbers. Scammers spoof 339 numbers so the call looks local. A lookup that shows a VoIP line, or a carrier that does not serve Massachusetts, is the giveaway.
- Delivery and utility texts. Texts about a missed package or an overdue Boston utility bill link to a fake payment page. Trace the sending number before tapping anything.
How to check a 339 number
- Enter the full ten-digit number in the panel above. The area code is already filled in.
- Read the line type and carrier. A mobile or landline from a carrier that serves Massachusetts is usually genuine; a VoIP line spun up yesterday is not.
- Check the risk level and community reports. If others have flagged the number, do not call back.
- Still unsure? Unlock risk details or the owner report for the number.
Frequently asked questions
Where is area code 339?
Area code 339 is in Massachusetts, United States. Its largest city is Boston.
What time zone is area code 339 in?
339 follows Eastern time (GMT-4). Check the live local time above before returning a call.
Is a call from 339 a scam?
Not by itself. 339 is a normal geographic area code, but scammers spoof local numbers. Run the free lookup on the exact number: a VoIP line, a carrier outside Massachusetts or existing community reports are the warning signs.
Why do I also see 617 and 857 in Boston?
617 and 857 are overlay codes that share the same area as 339. New numbers in Boston may be issued under any of them, so ten-digit dialing is required.