Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KY4OT callsign genealogy
Currently held by ALONSO, PETER
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 KY4OT's current licensee, walking backwards.
- ALONSO, PETERSCgranted 2022-03-30cancelled 2022-04-22
Successor callsigns
Callsigns held now by people who previously held KY4OT.
- ALONSO, PETERSCgranted 2022-05-17