I had the same experience you did when I attempted to verify a few of the peculiar names (like “Yoshicka Frison”) attached to the numbers. These people don’t exist—at least not in the cities listed for them.
I think your WAG is probably correct; these are fake numbers for the use of spammers. Usually I only Google phone numbers when there’s a missed call with no voicemail, and upon further reflection I realized that these were probably all spam robocalls.