Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N5JKU callsign genealogy
Currently held by RAMIREZ JR, GUILLERMO A
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 N5JKU's current licensee, walking backwards.
- Dean, Robert TTXgranted 2018-06-05cancelled 2018-08-31
Successor callsigns
Callsigns held now by people who previously held N5JKU.
- Dean, Robert TTXgranted 2020-08-21
All historical holders
Every license row we've seen with the callsign N5JKU, oldest first.
- RAMIREZ JR, GUILLERMO A TX1996-03-25 → cancelled 2008-03-26
- Dean, Robert T TX2018-08-31 → cancelled 2020-08-21