Zip Area Code

Area code 351

Area code 351 is a Massachusetts area code, in service since May 2, 2001.

It was added as an overlay on 978: both codes serve the same area, so neighbors can have numbers in either one.

Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

It is in the Eastern Time zone.

In service since
May 2, 2001
Overlays
978
Local dialing
ten digits; dialing 1 plus ten digits also works
Time zone
Eastern Time
ZIP codes
104

Map

Map of the 351 area codeThe shaded area shows where 351 numbers are rated, with the neighboring area codes outlined around it.603207413617802508781LawrenceLowellBillericaHaverhillConcordFitchburgSalemLeominster
Approximate 351 coverage, drawn from U.S. Census ZIP code areas and NANPA rate centers. Dashed lines are state borders.

Main cities in area code 351

Overlays and neighboring area codes

Overlay, serving the same area: 978.

Neighboring area codes: 603, 207, 860, 413, 617, 401, 802, 508, 781.

Counties in area code 351

Towns in area code 351

And 45 more towns: every town in Massachusetts.