Area code
Area code 573 — Missouri
Missouri · in service since January 7, 1996
Area code 573 covers parts of Missouri. It is an overlay: 235 serves the same area, so neighbors can have different area codes.
Overlay, same area: 235
Local time in Missouri
Spam reports from Sep 23 – Oct 22, 2026
High #85 of 461 codes
753 FTC complaints
Consumer reports, not verified by the FTC.
See the reports- Time zoneCentral Time
- Local calls10 digits
- Prefixes800 assigned
- Runs out~3Q 2063
- Unwanted call?Block & report
Spam call reports about 573 numbers
Complaints by week
Sep 11 – Oct 22, 2026Show as table
| Week starting | Complaints |
|---|---|
| Sep 7 (3 days) | 23 |
| Sep 14 | 153 |
| Sep 21 | 152 |
| Sep 28 | 147 |
| Oct 5 | 175 |
| Oct 12 | 188 |
| Oct 19 (4 days) | 143 |
Compared with all codes
- Robocalls
- 87%all codes 75%
- Callers with the same code
- 43%all codes 35%
- Rank by complaints
- #85of 461 · top quarter
- FCC complaints, Oct 2025 – Sep 2026
- 808 about text messages
What the calls were about
Sep 11 – Oct 22, 2026
| Subject | Complaints | |
|---|---|---|
| Reducing your debt (credit cards, mortgage, student loans) | 275 28% | |
| Medical & prescriptions | 88 9% | |
| Calls pretending to be government, businesses, or family and friends | 80 8% | |
| Dropped call or no message | 21 2% | |
| Warranties & protection plans | 9 1% | |
| Work from home & other ways to make money | 9 1% |
Where the people who complained live
Sep 11 – Oct 22, 2026
| State | Complaints | |
|---|---|---|
| Missouri | 458 47% | |
| California | 60 6% | |
| Florida | 42 4% | |
| Texas | 33 3% | |
| New York | 32 3% |
October 2026 (partial) report · most reported
Consumer reports, not verified by the FTC · source
Source: FTC Do Not Call complaints created Sep 11 – Oct 22, 2026. They are reported by consumers and are not verified by the FTC; caller ID can be spoofed (how we count).
Source: FCC Consumer Complaints data, unwanted calls filed Oct 1, 2025 – Sep 30, 2026, by caller ID; not verified by the FCC.
Area code 573 location and prefixes
| Exchange (NANPA) | Place | County | Prefixes |
|---|---|---|---|
| COLUMBIA | Columbia | Boone County | 59 |
| JEFFERSNCY | Jefferson City | spans 2 counties | 39 |
| CAPEGIRARD | Cape Girardeau | spans 2 counties | 34 |
| FARMINGTON | Farmington | St. Francois County | 16 |
| POPLAR BLF | Poplar Bluff | Butler County | 16 |
| LKOZKOSBCH | — | — | 15 |
| ROLLA | Rolla | Phelps County | 15 |
| BIRCH TREE | Birch Tree | Shannon County | 13 |
| HANNIBAL | Hannibal | spans 2 counties | 13 |
| SIKESTON | Sikeston | spans 2 counties | 13 |
Plus 206 smaller exchange areas.
Source: NANPA CO codes of Oct 23, 2026; places: U.S. Census Bureau, matched by DialWhere (how).
Is 573 running out of numbers?
Previous forecast (October 2025): 2061, moved later by 2 years.
Forecast exhaust year by edition
Source: NANPA NRUF forecast, April 2026 edition.
Who holds 573 prefixes
The five largest of 51 original holders
As listed by NANPA, not today’s carrier.
| Holder (as listed) | Prefixes | |
|---|---|---|
| Southwestern Bell | 128 16% | |
| New Cingular Wireless PCS, LLC | 113 14% | |
| Onvoy, LLC | 86 11% | |
| Level 3 Communications, LLC | 64 8% | |
| T-Mobile USA, Inc. | 44 6% |
Source: NANPA CO codes of Oct 23, 2026.
Questions about area code 573
What area code is 573?
A Missouri area code, in service since January 7, 1996.
Where is 573 area code, and what time zone is it in?
Missouri; Central Time.
Why am I getting spam calls from 573?
753 FTC complaints from Sep 23 – Oct 22, 2026, most often about debt reduction (not verified by the FTC; caller ID can be spoofed).
Will 573 get a new area code?
NANPA forecasts exhaust in 3Q 2063; no relief planning listed.