North American Numbers Source-cited · ownership disclosed
Area code
417
In service
United States · since 1950

Springfield / southwestern Missouri

Created in 1950 primarily from 816, area code 417 covers southwestern Missouri including Springfield, Joplin, and Branson. It remains a single, non-overlaid area code.

The essentials Numbering data · NumberResearch · as of 2026-09-18
Place
Springfield / southwestern Missouri
Type
geographic
Status
in service
In service since
1950
Projected exhaust
2032 Q2

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 417 is

Southwestern Missouri, including the Ozarks..

Communities served wholly or partly by 417:

SpringfieldJoplinBransonCarthageLebanonOzarkNixaNeoshoWest Plains

One of the more sparsely populated NPAs in the nation.

B · Relationships

How it relates to other codes

The codes 417 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?

Split from · 1950 816 Kansas City 417 was carved primarily from 816's southwestern half.
Related · 1996 573 Columbia / Jefferson City / eastern Missouri Adjacent eastern/southeastern Missouri.
Related · 1997 660 Northern / western Missouri Adjacent northern Missouri.
What's changing. No overlay; projected not to need relief until roughly 2037.
C · History

How 417 got here

1950
Created as Missouri's third NPA, mostly from 816, for the southwest.
Source: Wikipedia
2021-10
Transitioned to 10-digit dialing ahead of the 988 hotline rollout.
Source: Wikipedia
D · Capacity

How full it is

Prefixes assigned
725
Prefixes available
75
Thousands-blocks assigned
3,319

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

Compare 417 with another code →
Sources
Wikipedia ↗
Area code 417
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.