Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4SJA callsign genealogy
Currently held by Airey, Shawn J
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 N4SJA's current licensee, walking backwards.
- Airey, Shawn JFLgranted 2024-11-13cancelled 2025-09-12
Successor callsigns
Callsigns held now by people who previously held N4SJA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4SJA, oldest first.
- BIGLER, WILBERT J AL2007-09-14 → cancelled 2019-11-30
- Airey, Shawn J FL2025-09-12 active