Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5NCO 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 K5NCO's current licensee, walking backwards.
- SADLER, JEREMY DTXgranted 2020-11-16cancelled 2020-12-08
Successor callsigns
Callsigns held now by people who previously held K5NCO.
- SLATER, WILLIAM MOKgranted 2026-04-15
All historical holders
Every license row we've seen with the callsign K5NCO, oldest first.
- SLATER, WILLIAM M OK2013-02-13 → cancelled 2016-06-18
- SADLER, JEREMY D TX2020-12-08 active