573 Area Code — MO
Area code 573 serves MO in the Central time zone, in service since 1996. The FCC has 81 unwanted-call complaints against 80 different 573 numbers on record. Look up the exact number that called you below.
Most-reported 573 numbers
Ranked by FCC unwanted-call complaints. Click a number for its full report.
573 unwanted-call complaints, last 12 months
Monthly FCC complaint volume against 573 numbers. Spikes usually mark an active robocall campaign cycling through the code.
About area code 573
- Serves
- MO
- Time zone
- Central
- In service since
- 1996-01-07
- Overlay
- Yes — 10-digit dialing
Source: NANPA numbering records, refreshed weekly.
Spam calls from 573? What to know
Seeing repeated missed calls from 573 numbers you don't recognize is the classic signature of neighbor-spoofing robocall campaigns. The caller isn't necessarily in MO — spoofing software displays whatever digits the campaign chooses. Never call unknown numbers back; look them up first, and report unwanted calls to the FCC to build the public record.
Area code 573 FAQs
Where is area code 573?
Area code 573 serves MO, in the Central time zone. It is part of an overlay complex, so multiple area codes serve the same territory and 10-digit dialing is required. It has been in service since 1996.
Why do I keep getting calls from 573 numbers?
Robocallers use "neighbor spoofing" — displaying a number with a local area code to make you more likely to answer. A call showing area code 573 may not originate from MO at all. Look up the full 10-digit number on this site to see its complaint history before calling back.
Are 573 numbers safe to call back?
Area codes themselves are neither safe nor unsafe — 573 contains millions of legitimate lines alongside any spoofed or spam numbers. The FCC has logged 81 unwanted-call complaints against 80 distinct 573 numbers in our current data window. Check the specific number's report page before returning a missed call.