Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ0L callsign genealogy
Currently held by Leto, Joseph W
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 KJ0L's current licensee, walking backwards.
- Lewton, David EMOgranted 2011-06-16cancelled 2011-10-07
Successor callsigns
Callsigns held now by people who previously held KJ0L.
- LETO, JOSEPH WIAgranted 2019-05-23
All historical holders
Every license row we've seen with the callsign KJ0L, oldest first.
- Leto, Joseph W IA2004-05-21 → cancelled 2009-08-18
- Lewton, David E MO2021-08-25 active