Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NN5XX callsign genealogy
Currently held by WIMMER, CHRIS
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 NN5XX's current licensee, walking backwards.
- Wimmer, ChrisCAgranted 2022-12-07cancelled 2022-12-30
- KC6OCYno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held NN5XX.
All historical holders
Every license row we've seen with the callsign NN5XX, oldest first.
- Razorback Contest Club AR2015-08-04 → cancelled 2016-05-03
- WIMMER, CHRIS CA2022-12-30 → cancelled 2025-03-11