Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9DWP callsign genealogy
Currently held by TERBORG, DAVID 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 N9DWP's current licensee, walking backwards.
- Landry, Jason DOHgranted 2015-09-10cancelled 2015-11-24
Successor callsigns
Callsigns held now by people who previously held N9DWP.
- TERBORG, DAVID ROHgranted 2021-08-02
All historical holders
Every license row we've seen with the callsign N9DWP, oldest first.
- TERBORG, DAVID R OH2007-05-15 → cancelled 2011-10-25
- Landry, Jason D OH2025-11-29 active