Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NK5S callsign genealogy
Currently held by FAIRFAX, STEPHEN 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 NK5S's current licensee, walking backwards.
- FAIRFAX, STEPHEN ATXgranted 2020-05-23cancelled 2020-06-23
Successor callsigns
Callsigns held now by people who previously held NK5S.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NK5S, oldest first.
- DE HOYOS, LEOPOLDO C TX2008-03-06 → cancelled 2020-06-04
- FAIRFAX, STEPHEN A TX2020-06-23 active