Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD5GCX callsign genealogy
Currently held by SLATER, WILLIAM M
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 KD5GCX's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KD5GCX.
- SLATER, WILLIAM MOKgranted 2002-03-08cancelled 2003-05-13
All historical holders
Every license row we've seen with the callsign KD5GCX, oldest first.
- SLATER, WILLIAM M OK1999-01-21 → cancelled 2002-03-08
- SLATER, WILLIAM M OK2026-04-15 active