WCWhoCalledLookupUS

970 Area Code — CO

Area code 970 serves CO in the Mountain time zone, in service since 1995. The FCC has 325 unwanted-call complaints against 305 different 970 numbers on record. Look up the exact number that called you below.

Most-reported 970 numbers

Ranked by FCC unwanted-call complaints. Click a number for its full report.

970 unwanted-call complaints, last 12 months

Monthly FCC complaint volume against 970 numbers. Spikes usually mark an active robocall campaign cycling through the code.

About area code 970

Serves
CO
Time zone
Mountain
In service since
1995-04-02
Overlay
Yes — 10-digit dialing

Source: NANPA numbering records, refreshed weekly.

Spam calls from 970? What to know

Seeing repeated missed calls from 970 numbers you don't recognize is the classic signature of neighbor-spoofing robocall campaigns. The caller isn't necessarily in CO — 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 970 FAQs

Where is area code 970?

Area code 970 serves CO, in the Mountain 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 1995.

Why do I keep getting calls from 970 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 970 may not originate from CO at all. Look up the full 10-digit number on this site to see its complaint history before calling back.

Are 970 numbers safe to call back?

Area codes themselves are neither safe nor unsafe — 970 contains millions of legitimate lines alongside any spoofed or spam numbers. The FCC has logged 325 unwanted-call complaints against 305 distinct 970 numbers in our current data window. Check the specific number's report page before returning a missed call.