Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4OSA callsign genealogy
Currently held by PAVONES PACIFIC SURFERS AMATEUR RADIO CL
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 K4OSA's current licensee, walking backwards.
- KD5AKVcancelledBROWN, LINDSEY Rcancelled 1998-01-09
Successor callsigns
Callsigns held now by people who previously held K4OSA.
No current licensee on record previously held this callsign.