Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N0ISI callsign genealogy
Currently held by Cole, Joan L
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 N0ISI's current licensee, walking backwards.
- Cole, Joan LTXgranted 2004-10-05cancelled 2005-08-16
Successor callsigns
Callsigns held now by people who previously held N0ISI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0ISI, oldest first.
- MITCHELL, MARK R IA1987-12-01 → cancelled 1999-12-02
- Cole, Joan L TX2017-06-06 active