Now they are using the number to just text people who are selling their vehicles online saying that they sent you a certified check in the mail. Only texts phone number doesn't receive or call out. Scam
Same here, just got 2 calls, one in the morning, one in the afternoon. (Conclusion, they - robots - follow up with a second round, OR someone who has hacked phone numbers (so many out there!) sold to two separate spammers/scammers!
No ID. ("CO, USA"), several reports on record of no human, tones/noises. Seems to be auto-fax spam. Calling my do-not-call registered phone - twice - as if they care. Report & block, probably the best that can be done.
Now they are using the number to just text people who are selling their vehicles online saying that they sent you a certified check in the mail. Only texts phone number doesn't receive or call out. Scam