Who called from 5623528996

Not sure who owns this number but I hope they don't call me back.

7/21 12:42 PDT  No clue who or what this is, nor do I care.  No ID and no msg.  Just another nuisance call.  6th of the day.

7/21 15:29 PDT Obviously second attempt today, again no ID and no msg.  Now 10th garbage call.

7/29 13:01 PDT Number now blocked so only rang once here.  Amazing how many of these calls I have been getting lately where I seem to be the only one reporting.

got a call from this number and called back, but nobody picked up the call and hung up automatically.