Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NA9H callsign genealogy
Currently held by LONIS, DAVID P
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 NA9H's current licensee, walking backwards.
- Harroo, Dexter CNYgranted 2026-07-01cancelled 2026-07-21
Successor callsigns
Callsigns held now by people who previously held NA9H.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NA9H, oldest first.
- LONIS, DAVID P IN2014-01-02 → cancelled 2026-03-24
- Harroo, Dexter C NY2026-07-21 active