Who called from 7204529292

Several calls over many days but they never leave a message.  Called the number back but it rings busy non-stop.  Another spammer junk caller.

Received calls yesterday and today. Blocking number and filing complaints for both calls with FCC.

Not really. I live in Colorado, local to the 720 area code (my cell).  My ID comes up "Out of area" so i know it is spoofed and can come from ANY WHERE in the WORLD.

10 of the 25 calls received in the past week are from this number. Interrupting my work and just plain annoying.