Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N8KTJ callsign genealogy
Currently held by O TOOLE, MARGARET A
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 N8KTJ's current licensee, walking backwards.
- Jaeger, Karl TMIgranted 2025-11-25cancelled 2025-12-30
Successor callsigns
Callsigns held now by people who previously held N8KTJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N8KTJ, oldest first.
- O TOOLE, MARGARET A MI2009-11-05 → cancelled 2021-02-27
- Jaeger, Karl T MI2025-12-30 active