Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF8SD callsign genealogy
Currently held by ZIHLMAN SR, TERRY L
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 KF8SD's current licensee, walking backwards.
- KD4ECOno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KF8SD.
- ZIHLMAN SR, TERRY LNCgranted 2020-02-15