Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N1SPY callsign genealogy
Currently held by NEILAN, HARRY 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 N1SPY's current licensee, walking backwards.
- Cholakov, ThomasFLgranted 2015-12-07cancelled 2015-12-25
Successor callsigns
Callsigns held now by people who previously held N1SPY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1SPY, oldest first.
- NEILAN, HARRY J CT1994-07-15 → cancelled 2006-07-18
- CHOLAKOV, THOMAS FL2025-12-02 active