Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WD5IOI callsign genealogy
Currently held by Monjure, Richard 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 WD5IOI's current licensee, walking backwards.
- Monjure, Richard JFLgranted 2016-01-15cancelled 2020-09-15
Successor callsigns
Callsigns held now by people who previously held WD5IOI.
No current licensee on record previously held this callsign.