Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0ZL callsign genealogy
Currently held by LEAHY, WILLIAM 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 K0ZL's current licensee, walking backwards.
- Carey, Alexander BOKgranted 2011-03-23cancelled 2018-10-30
Successor callsigns
Callsigns held now by people who previously held K0ZL.
- REIMER, DANIEL GKYgranted 2016-10-08cancelled 2017-09-06
All historical holders
Every license row we've seen with the callsign K0ZL, oldest first.
- LEAHY, WILLIAM J CO2005-06-15 → cancelled 2009-02-02
- REIMER, DANIEL G KY2011-02-23 → cancelled 2016-10-08
- Carey, Alexander B FL2018-10-30 active