Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5OSB callsign genealogy
Currently held by Osbon Jr, Lloyd 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 K5OSB's current licensee, walking backwards.
- Osbon Jr, Lloyd HOKgranted 2016-05-31cancelled 2017-09-12
Successor callsigns
Callsigns held now by people who previously held K5OSB.
No current licensee on record previously held this callsign.