670 Area Code — Scam Calls, Location & Who's Calling
Area code 670 serves the Northern Mariana Islands in the (UTC+10) time zone, in service since 1997. The FCC has 27 unwanted-call complaints against 27 different 670 numbers on record. Look up the exact number that called you below.
Reported 670 numbers
No 670 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.
About area code 670
- Serves
- the Northern Mariana Islands
- Time zone
- (UTC+10)
- In service since
- 1997-07-01
- Overlay
- No
Source: NANPA numbering records, refreshed weekly.
Spam calls from 670? What to know
Seeing repeated missed calls from 670 numbers you don't recognize is the classic signature of neighbor-spoofing robocall campaigns. The caller isn't necessarily in the Northern Mariana Islands — 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 670 FAQs
Where is area code 670?
Area code 670 serves the Northern Mariana Islands, in the (UTC+10) time zone. It has been in service since 1997.
Why do I keep getting calls from 670 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 670 may not originate from the Northern Mariana Islands at all. Look up the full 10-digit number on this site to see its complaint history before calling back.
Are 670 numbers safe to call back?
Area codes themselves are neither safe nor unsafe — 670 contains millions of legitimate lines alongside any spoofed or spam numbers. The FCC has logged 27 unwanted-call complaints against 27 distinct 670 numbers in our current data window. Check the specific number's report page before returning a missed call.