Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K8KNX callsign genealogy
Currently held by POLAND, JOHN R
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 K8KNX's current licensee, walking backwards.
- PLYLER, MATTHEW DTNgranted 2013-04-17cancelled 2019-07-30
Successor callsigns
Callsigns held now by people who previously held K8KNX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K8KNX, oldest first.
- POLAND, JOHN R OH2004-01-13 → cancelled 2016-03-23
- PLYLER, MATTHEW D TN2019-07-30 active