Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N0OOP callsign genealogy
Currently held by Smith, Ryan R
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 N0OOP's current licensee, walking backwards.
- Smith, Ryan RTNgranted 2025-08-05cancelled 2025-08-23
Successor callsigns
Callsigns held now by people who previously held N0OOP.
- Heisler, FletcherNYgranted 2020-04-14
All historical holders
Every license row we've seen with the callsign N0OOP, oldest first.
- SOGARD, BRIAN A IA2001-04-24 → cancelled 2013-07-10
- Heisler, Fletcher MA2020-02-29 → cancelled 2020-04-14
- Smith, Ryan R TN2025-08-23 active