State · 9 area codes

Massachusetts area codes

Massachusetts has nine area codes, with 413 in the west and the rest (including 617/857 for Boston) covering central and eastern Massachusetts.

A · Metros

Major metro areas

Boston Worcester Springfield Cambridge

B · Directory

All Massachusetts area codes

Every code opens its profile — codes with a full write-up show their place; the rest show live numbering data while their detailed profile is added.

339 · Boston northern/inner suburbs (overlay) 351 · North central & northeastern Massachusetts (overlay) 413 · Western Massachusetts (Springfield) 508 · South-central & southeastern Massachusetts (Worcester) 617 · Boston 774 · South-central & southeastern Massachusetts (overlay) 781 · Boston suburbs (Route 128 corridor) 857 · Boston (overlay) 978 · North central & northeastern Massachusetts (Lowell)

Sources

List of Massachusetts area codes (secondary)

Compiled by North American Numbers, last checked 2026-09-19. How this is made.