North American Numbers Source-cited · ownership disclosed
Area code
413
In service
United States · since 1947

Western Massachusetts (Springfield)

Area code 413 is the sole area code for the western third of Massachusetts, one of the two original 1947 Massachusetts codes. It has never been split or overlaid.

The essentials Numbering data · NumberResearch · as of 2026-09-18
Place
Western Massachusetts (Springfield)
Type
geographic
Status
in service
In service since
1947
Projected exhaust
2048 Q3

Status, dates and counts are read from NumberResearch (NANPA / CNAC / FCC records). Assignment records show initial assignees, not the carrier serving a number today.

A · Where it is

Where 413 is

Berkshire, Hampden, Hampshire, and most of Franklin counties, plus small portions of Worcester County (Hardwick and Warren)..

Communities served wholly or partly by 413:

SpringfieldNorthamptonPittsfieldGreenfieldNorth AdamsGreat Barrington

Four Franklin County towns (Orange, New Salem, Warwick, Wendell) use 978/351 rather than 413.

B · Relationships

How it relates to other codes

The codes 413 was split from, spawned, or shares its area with. A split divides the map and changes some numbers; an overlay shares the same ground and changes none — what's the difference?

Related · 1947 617 Boston The other original 1947 Massachusetts code, covering eastern Massachusetts; 413 covered the west.
What's changing. No overlay and no split; remains a single area code. Per Wikipedia, central office code exhaustion not projected until 2048.
C · History

How 413 got here

1947
Area code 413 established as one of the two original Massachusetts area codes, covering the western third of the state.
Source: Wikipedia
D · Capacity

How full it is

Prefixes assigned
646
Prefixes available
154
Thousands-blocks assigned
3,015

Prefix-assignment counts describe allocation to carriers, not how many individual numbers are in use. Full technical records: NumberResearch ↗.

Compare 413 with another code →
Sources
Wikipedia ↗
Area code 413
NumberResearch.org ↗
Live status, dates, assignment counts and exhaust forecast — data as of 2026-09-18 (CC BY 4.0).

Place, relationships and history above are compiled by North American Numbers from the sources listed and last checked 2026-09-18. A check date is not an expert review — see how this is made. Flag an error.