Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5IQ callsign genealogy
Currently held by FORST, WILLIAM 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 W5IQ's current licensee, walking backwards.
- FORST, WILLIAM JARgranted 2017-12-21cancelled 2018-08-03
Successor callsigns
Callsigns held now by people who previously held W5IQ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5IQ, oldest first.
- UNDERWOOD JR, JOHN C MS2006-08-16 → cancelled 2016-07-14
- FORST, WILLIAM J AR2018-08-03 active