Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB4RHM callsign genealogy
Currently held by Morrison, Robert H
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 KB4RHM's current licensee, walking backwards.
- Morrison, Robert HTNgranted 2018-11-01cancelled 2018-11-20
Successor callsigns
Callsigns held now by people who previously held KB4RHM.
No current licensee on record previously held this callsign.