Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1ZAG callsign genealogy
Currently held by Thomson, Jason W
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 N1ZAG's current licensee, walking backwards.
- Thomson, Jason WMAgranted 2025-04-22cancelled 2025-12-09
Successor callsigns
Callsigns held now by people who previously held N1ZAG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1ZAG, oldest first.
- YORK, RALPH K MA2007-04-20 → cancelled 2019-04-19
- Thomson, Jason W MA2025-12-09 active