Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N8TCI callsign genealogy
Currently held by Roll, Joseph 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 N8TCI's current licensee, walking backwards.
- Roll, Joseph JOHgranted 2017-09-19cancelled 2017-10-11
Successor callsigns
Callsigns held now by people who previously held N8TCI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N8TCI, oldest first.
- KOLAR, FREDERICK M OH1992-04-14 → cancelled 2004-04-15
- Roll, Joseph J OH2017-10-11 active