Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD5UCK callsign genealogy
Currently held by Naas, Alexander 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 KD5UCK's current licensee, walking backwards.
- Naas, Alexander MOKgranted 2015-06-11cancelled 2015-11-24
Successor callsigns
Callsigns held now by people who previously held KD5UCK.
All historical holders
Every license row we've seen with the callsign KD5UCK, oldest first.
- Cobo Jr, Richard C TX2002-10-15 → cancelled 2002-11-05
- Naas, Alexander M OK2015-11-24 → cancelled 2016-04-12