Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NS0K callsign genealogy
Currently held by SIEBENS, ALAN 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 NS0K's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held NS0K.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NS0K, oldest first.
- SIEBENS, ALAN A IA2012-12-05 → cancelled 2024-12-24
- BEDYNEK, MICHAEL J SC2025-01-11 active