United States · Massachusetts
Area code 617 serves Boston and surrounding communities in Massachusetts, United States. Numbers that start with 617 follow Eastern time. Enter the full number in the lookup panel to see the carrier, line type and scam risk before you call back.
617 covers Boston, Cambridge and Newton. The same area is also served by 339 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.
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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 617 caller IDs.
Area code 617 is in Massachusetts, United States. Its largest city is Boston, and it also covers Cambridge, Newton.
617 follows Eastern time (GMT-4). Check the live local time above before returning a call.
Not by itself. 617 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.
339 and 857 are overlay codes that share the same area as 617. New numbers in Boston may be issued under any of them, so ten-digit dialing is required.