Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1JOE callsign genealogy
Currently held by CIULLA, JOE C
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 K1JOE's current licensee, walking backwards.
- SLITZKER, JOE MOKgranted 2010-03-25cancelled 2013-10-17
Successor callsigns
Callsigns held now by people who previously held K1JOE.
- CIULLA mr, JOE CALgranted 2011-08-19cancelled 2023-08-22
All historical holders
Every license row we've seen with the callsign K1JOE, oldest first.
- MACHADO, JOSEPH P MA1998-01-14 → cancelled 2010-01-15
- CIULLA, JOE C AL2010-02-17 → cancelled 2011-08-19
- SLITZKER, JOE M OK2023-12-19 active