Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W0HAK callsign genealogy
Currently held by Madrigal, Caleb E
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 W0HAK's current licensee, walking backwards.
- Madrigal, Caleb EWIgranted 2015-02-02cancelled 2017-02-17
Successor callsigns
Callsigns held now by people who previously held W0HAK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0HAK, oldest first.
- BELSHAW, WILLIAM S MN1997-04-23 → cancelled 2009-04-24
- Madrigal, Caleb E WI2017-02-17 active