Massachusetts Area Codes: Complete Guide to All 9 MA Codes (2026)

📅 2026-02-22 ⏱️ 14 min read ✍️ BubblyPhone Team

Complete guide to all 9 Massachusetts area codes — 617/857, 781/339, 978/351, 508/774, and 413. From Boston to Cape Cod to Springfield.

Massachusetts has 9 area codes organized in 4 overlay pairs plus one standalone — serving over 7.1 million people across 14 counties. From the cobblestone streets of Boston to the cranberry bogs of Cape Cod, the Bay State packs more American history per square mile than anywhere else.

Quick Facts

State: Massachusetts
Population: ~7.15 million (16th in US)
Total Area Codes: 9
Time Zone: Eastern (entire state)
Original Codes: 617 and 413 (both 1947)
Dialing: 10-digit in overlay areas; 7-digit in 413 only
Capital: Boston (617/857)
Largest City: Boston (~673,000)

All 9 MA Area Codes

617/857 — Boston & Inner Core. 781/339 — Inner Suburbs / Route 128. 978/351 — Northeastern MA (Salem, Lowell). 508/774 — Central & Southeastern MA (Worcester, Cape Cod, Martha's Vineyard). 413 — Western Massachusetts (Springfield — birthplace of basketball).

Is a Massachusetts Area Code a Scam?

Massachusetts area codes are legitimate, serving 7.1 million people. However, Boston numbers are frequently spoofed. Use our Spam Number Checker to verify suspicious numbers.

How to Call MA Internationally

Dial exit code + 1 + MA area code + 7-digit number. On mobile: +1-617-XXX-XXXX. Use Best Time to Call for Eastern Time info. Look up any code with our Area Code Lookup. Check our rates.