Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB8KI callsign genealogy
Currently held by Wiersma, Jeff S
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 AB8KI's current licensee, walking backwards.
- Wiersma, Jeff SMIgranted 1999-06-07cancelled 2001-04-05
Successor callsigns
Callsigns held now by people who previously held AB8KI.
- WIERSMA, JEFF SMIgranted 2021-02-24