Who called from 4029820550

Calls and lets ring never message left , really gets annoying !

Doesn't ring enough to trigger machine.

CallerID: ESTASOL

This # called me at my work number but did not leave a message.  Very strange that they got my work number.  I have no idea who or what this # would be.

NEVER LEAVES A MESSAGE! I DID THE REVERSE LOOK UP & FOUND OUT NAME OF COMPANY. PHONE CALL IS FROM OMAHA,NEBRASKA

Shows up on caller ID as unknown.  Never rings long enough to start answering machine or they hang up right when machine picks up.