Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NN6O callsign genealogy
Currently held by HSU, AARON T
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 NN6O's current licensee, walking backwards.
- HSU, AARON TCAgranted 1995-01-13cancelled 2001-10-20
Successor callsigns
Callsigns held now by people who previously held NN6O.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NN6O, oldest first.
- TIMBLIN JR, CLYDE A CA1987-10-06 → cancelled 1999-10-07
- HSU, AARON T CA2022-01-25 active