Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4IGM callsign genealogy
Currently held by SHULL SR, JOHN W
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 W4IGM's current licensee, walking backwards.
- GARCIA, IVANFLgranted 2014-01-07cancelled 2014-09-09
Successor callsigns
Callsigns held now by people who previously held W4IGM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4IGM, oldest first.
- SHULL SR, JOHN W AK1995-11-28 → cancelled 2007-11-29
- GARCIA, IVAN FL2024-07-26 active