Who called from 5203142294

Caller ID reads V009123700000074.  Does anybody know what that is supposed to mean?  Similar number salad has occasionally appeared.  Blocked them all.

called and did not answer only # in ID

Called early morning, quiet, said 'Good Morning, Mr. {lastname}" in a creepy way and hung up

Received a call from 520-314-2294 Tucson AZ on caller id.  No message.  I never answer unknown callers and unknown numbers.  Blocked.

no message left, tried to call back but got busy signal