Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W0WZZ callsign genealogy
Currently held by McCool, Robert W
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by W0WZZ's current licensee, walking backwards.
- VINCENT, SHAWN MKSgranted 2014-07-08cancelled 2015-09-01
Successor callsigns
Callsigns held now by people who previously held W0WZZ.
All historical holders
Every license row we've seen with the callsign W0WZZ, oldest first.
- McCool, Robert W CO2007-05-22 → cancelled 2010-11-13
- VINCENT, SHAWN M KS2015-09-01 → cancelled 2023-07-11