413 Area Code: Western Massachusetts Phone Guide

Quick answer: The 413 area code covers all of Western Massachusetts — the entire half of the state west of Worcester. That includes Springfield (the largest city in Western MA), Holyoke, Chicopee, Northampton, Amherst, Westfield, and the entire Pioneer Valley along the Connecticut River, plus the Berkshire Mountains to the west (Pittsfield, Williamstown, Stockbridge, Lenox, Great Barrington). It's been in service since 1957, sits in Eastern Time, and has no overlay — still operating as a single clean code 67 years later.

What is the 413 area code?

A 413 number on caller ID puts you somewhere in the western half of Massachusetts — the Pioneer Valley college and industrial corridor, or the Berkshires mountain region west of it.

Western MA has a distinct cultural identity from Boston — slower-paced, more rural, anchored by the Connecticut River and the Five Colleges (UMass, Smith, Mount Holyoke, Amherst, Hampshire).

This guide comes from My Country Mobile (MCM), a virtual phone provider that issues local numbers across the US.

Where 413 reaches — the valley + the hills

The 413 footprint splits into two distinct geographic halves:

The Pioneer Valley (Connecticut River corridor)

The flat, industrial / academic corridor running north-south along the Connecticut River. ~600,000 people:

• Springfield (~155,000) — the anchor city. Birthplace of basketball, the Naismith Hall of Fame, MGM Springfield.
• Chicopee (~55,000) — old French-Canadian milltown north of Springfield.
• Holyoke (~38,000) — historic paper-mill city, "the Paper City."
• West Springfield, Agawam, Westfield, Easthampton — surrounding suburban / small-city ring.
• Northampton (~28,000) — the cultural anchor of the north Valley. Smith College, arts, restaurants.
• Amherst (~39,000) — home of UMass Amherst, Amherst College, Hampshire College.
• Greenfield + Turners Falls — northern tier of the Valley.

The Berkshires (mountains, western edge)

The mountain region against the New York border. ~125,000 people, much more rural:

• Pittsfield (~43,000) — the largest city in the Berkshires. County seat of Berkshire County.
• Williamstown — Williams College, the Clark Art Institute, Williamstown Theatre Festival.
• Lenox — Tanglewood (Boston Symphony's summer home), gilded-age mansions.
• Stockbridge — Norman Rockwell country, the Red Lion Inn.
• Great Barrington — south Berkshires cultural hub.
• North Adams — MASS MoCA, post-industrial arts revival.

The Hilltowns (between)

Small rural towns scattered in the hills between the Valley and the Berkshires — Cummington, Worthington, Chesterfield, Goshen, Plainfield, Becket. Sparse population, mostly farms and second homes.

Why 413 has stayed solo for 67 years

Unlike most US metros that need overlay after overlay, 413 has stayed as a single clean code for 67 years. The reasons are demographic and geographic:

Moderate population

Western Massachusetts has ~825,000 people spread across 4 counties — substantial, but not metro-scale. By comparison, the Boston 617/857 region has ~2 million in a much smaller geographic footprint.

Slower growth + 2014 number-pooling reforms

Western MA has had stable or slowly-shrinking population since the 1970s. Combined with FCC number-pooling reforms in 2014 (which let regulators reclaim unused number blocks from carriers), 413's number supply has stretched comfortably.

Industrial transition + college towns

The economy is steady-state (healthcare, education, government) rather than boom-and-bust. No tech-driven population surges, no overlay pressure.

What it means for you

• 413 still operates as a single code — no competing overlay number to deal with.
• 10-digit dialing is the modern standard — even though 7-digit technically still works, every modern phone, dialer, and CRM uses 413 XXX XXXX.
• Plenty of headroom — 413 isn't running out of numbers anytime soon.

How the 413 area code works

Dialing rules:

The 413 time zone

413 runs on Eastern Time — the same clock as Boston, New York, and Washington DC.

• Eastern Standard Time (EST): UTC−5 (winter)
• Eastern Daylight Time (EDT): UTC−4 (summer)

Reference clock — when it's 12:00 PM in 413 (Springfield):

Why a 413 number helps your business

A 413 line tells a Springfield clinic, a Northampton shop, or a Lenox B&B that you're part of the Western MA community.

• Higher pickup rates on outbound. Western MA residents recognize 413 as local and answer.
• Geo-targeted ads land harder when the call-back is local. A 413 on a billboard reads as a neighbor.
• Vanity numbers double as marketing — 413-SPRINGFIELD, 413-VALLEY, 413-BERKSHIRE, 413-UMASS.

And because it's a virtual number, you can hold a 413 line while based anywhere with internet.

How to get a 413 phone number

Five clean steps along the progress bar, about five minutes total.

1. Sign up — Open a free MCM account. No card needed to browse inventory.
2. Search 413 — Filter the live inventory by area code 413.
3. Pick your number — Standard or vanity (e.g. 413-SPRINGFIELD, 413-VALLEY, 413-BERKSHIRE).
4. Pick a plan — Seat count + features. From $12 / user / month.
5. Go live — Activate, route to cell / desk phone / softphone, take your first call.

Porting an existing 413 number runs 5–10 business days in the background while you stay live on a temporary number.

Get a 413 virtual number →

ZIP codes in the 413 area code

The 413 region overlaps with roughly 125+ ZIP codes across Western MA. A sample by city:

(Source: USPS ZIP code data and Massachusetts Department of Telecommunications and Cable records.)

Frequently asked questions about the 413 area code

Sources

• North American Numbering Plan Administrator (NANPA)
• Massachusetts Department of Telecommunications and Cable
• Wikipedia — Area code 413
• USPS ZIP Code Lookup
• FCC — STIR/SHAKEN call authentication