Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC8IWU callsign genealogy
Currently held by MARTIN, STEVEN F
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 KC8IWU's current licensee, walking backwards.
- MARTIN, STEVEN FMIgranted 2016-11-18cancelled 2016-12-16
Successor callsigns
Callsigns held now by people who previously held KC8IWU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC8IWU, oldest first.
- MARTIN, STEVEN F MI1997-11-26 → cancelled 2009-11-28
- MARTIN, STEVEN F MI2016-12-16 active