Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N5ZR callsign genealogy
Currently held by JAKUBEC, THOMAS S
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 N5ZR's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held N5ZR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N5ZR, oldest first.
- JAKUBEC, THOMAS S TX2012-04-10 → cancelled 2018-10-16
- Champion Sr, Michael G TX2020-11-06 active