Missouri Area Codes
Compare 9 in-service area codes assigned to Missouri. Explore each code’s introduction date, overlays, possible time zones, and public prefix records.
Missouri numbering at a glance
- In-service area codes
- 9
- Time-zone labels in NANPA data
- Central
- Listed in-service or assigned prefixes
- 4,126 · source dated 2026-09-29
These are numbering assignments. The counts do not represent active phone numbers, current carriers, or a caller’s physical location.
Compare area codes in Missouri
| Code | Introduced | Other codes in overlay | Time zones | Listed prefixes |
|---|---|---|---|---|
| 235 | 24-Mar-2024 | 573 | Central | 33 |
| 314 | 01-Jan-1947 | 557 | Central | 783 |
| 417 | 01-Jan-1950 | None listed | Central | 706 |
| 557 | 12-Aug-2022 | 314 | Central | 69 |
| 573 | 07-Jan-1996 | 235 | Central | 786 |
| 636 | 22-May-1999 | None listed | Central | 430 |
| 660 | 12-Oct-1997 | None listed | Central | 513 |
| 816 | 01-Jan-1947 | 975 | Central | 785 |
| 975 | 13-Oct-2023 | 816 | Central | 21 |
Source: NANPA NPA database, dated 2026-09-28. Prefix counts: NANPA US assignment report. View official area-code maps.
Overlay groups in Missouri
Codes in an overlay group can serve the same broad numbering area. A person may keep a number after moving, and the displayed number may be spoofed.
Find a number in Missouri
Open an area-code page above to check a prefix and possible time zones. You can also search US telephone rate-center names; those names are not exact city coverage.
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