Confidence: Medium · Source: FCC ULS · As of 2026-09-15
WZ4JCM callsign genealogy
Currently held by Monteagudo, Juan C
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 WZ4JCM's current licensee, walking backwards.
- Monteagudo, Juan CFLgranted 2021-11-29cancelled 2022-02-25
Successor callsigns
Callsigns held now by people who previously held WZ4JCM.
- Monteagudo, Juan CFLgranted 2023-07-15