Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0SPF callsign genealogy
Currently held by Lavoie III, John M
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 K0SPF's current licensee, walking backwards.
- Lavoie III, John MNEgranted 2020-06-09cancelled 2020-06-27
Successor callsigns
Callsigns held now by people who previously held K0SPF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0SPF, oldest first.
- PARKER, WAYNE G CO1996-07-17 → cancelled 2008-07-18
- Lavoie III, John M NE2020-06-27 active