Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4CB callsign genealogy
Currently held by Morales, Athos J
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 KP4CB's current licensee, walking backwards.
- Morales, Athos JPRgranted 2017-08-18cancelled 2020-03-10
Successor callsigns
Callsigns held now by people who previously held KP4CB.
- Morales, Athos JPRgranted 2017-08-18cancelled 2020-03-10
All historical holders
Every license row we've seen with the callsign KP4CB, oldest first.
- Morales, Athos J PR2008-01-25 → cancelled 2017-08-18
- Morales Mr, Athos J PR2020-03-10 active