Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KT4IB callsign genealogy
Currently held by Bish, Hal G
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 KT4IB's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KT4IB.
No current licensee on record previously held this callsign.