605 Area Code — SD
Area code 605 serves SD in the CM time zone, in service since 1947. The FCC has 68 unwanted-call complaints against 68 different 605 numbers on record. Look up the exact number that called you below.
Reported 605 numbers
No 605 numbers currently pass our complaint threshold. Look up the exact number that called you — the lookup works on every US number, whether or not it has complaint history.
605 unwanted-call complaints, last 12 months
Monthly FCC complaint volume against 605 numbers. Spikes usually mark an active robocall campaign cycling through the code.
About area code 605
- Serves
- SD
- Time zone
- CM
- In service since
- 1947-01-01
- Overlay
- No
Source: NANPA numbering records, refreshed weekly.
Spam calls from 605? What to know
Seeing repeated missed calls from 605 numbers you don't recognize is the classic signature of neighbor-spoofing robocall campaigns. The caller isn't necessarily in SD — 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 605 FAQs
Where is area code 605?
Area code 605 serves SD, in the CM time zone. It has been in service since 1947.
Why do I keep getting calls from 605 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 605 may not originate from SD at all. Look up the full 10-digit number on this site to see its complaint history before calling back.
Are 605 numbers safe to call back?
Area codes themselves are neither safe nor unsafe — 605 contains millions of legitimate lines alongside any spoofed or spam numbers. The FCC has logged 68 unwanted-call complaints against 68 distinct 605 numbers in our current data window. Check the specific number's report page before returning a missed call.