Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9NN callsign genealogy
Currently held by STRONG, JEFFREY D
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 N9NN's current licensee, walking backwards.
- STRONG, JEFFREY DWIgranted 2007-01-05cancelled 2009-07-18
Successor callsigns
Callsigns held now by people who previously held N9NN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9NN, oldest first.
- Mc Dermut, Wilson E IL1999-04-15 → cancelled 2007-05-16
- STRONG, JEFFREY D WI2019-05-13 active