Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WO4RX callsign genealogy
Currently held by MONTEALEGRE, OSCAR R
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 WO4RX's current licensee, walking backwards.
- MONTEALEGRE, OSCAR Rcancelled 1998-01-06
Successor callsigns
Callsigns held now by people who previously held WO4RX.
No current licensee on record previously held this callsign.