Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0TYG callsign genealogy
Currently held by HARNDEN, HARRISON F
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 W0TYG's current licensee, walking backwards.
- Roberts, Derek LIAgranted 2015-02-12cancelled 2017-06-17
Successor callsigns
Callsigns held now by people who previously held W0TYG.
- HARNDEN, HARRISON FARgranted 2015-05-27
All historical holders
Every license row we've seen with the callsign W0TYG, oldest first.
- HARNDEN, HARRISON F IA2010-11-20 → cancelled 2015-05-27
- Roberts, Derek L IA2017-06-17 active