Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N8JAK callsign genealogy
Currently held by HOLLSTEIN, BARBARA 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 N8JAK's current licensee, walking backwards.
- Klingler, Jeffery AOHgranted 2004-09-23cancelled 2008-01-18
Successor callsigns
Callsigns held now by people who previously held N8JAK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N8JAK, oldest first.
- HOLLSTEIN, BARBARA R MI1987-12-29 → cancelled 1999-12-30
- Klingler, Jeffery A OH2017-12-27 active