Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K8RTR callsign genealogy
Currently held by Seiler, William A
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 K8RTR's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K8RTR.
No current licensee on record previously held this callsign.