Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4JOO 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 N4JOO's current licensee, walking backwards.
- Rodriguez, Manuel EVAgranted 2016-05-17cancelled 2016-07-09
Successor callsigns
Callsigns held now by people who previously held N4JOO.
- CIULLA, JOE CALgranted 2010-02-17cancelled 2011-08-19
All historical holders
Every license row we've seen with the callsign N4JOO, oldest first.
- CIULLA, JOE C AL2000-05-19 → cancelled 2010-02-17
- Rodriguez, Manuel E VA2026-05-07 active