Confidence: Medium · Source: FCC ULS · As of 2026-09-11
KB8OSF callsign genealogy
Currently held by PLATT, JOHN J
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 KB8OSF's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KB8OSF.
- PLATT, JOHN JMIgranted 2023-02-07