Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5RTR callsign genealogy
Currently held by Knight, John
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 K5RTR's current licensee, walking backwards.
- KNIGHT, JOHN CMSgranted 2016-02-29cancelled 2018-02-21
Successor callsigns
Callsigns held now by people who previously held K5RTR.
No current licensee on record previously held this callsign.