Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0ABI callsign genealogy
Currently held by Pester, Gary W
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 K0ABI's current licensee, walking backwards.
- Pester, Gary WMOgranted 2011-12-22cancelled 2015-12-04
Successor callsigns
Callsigns held now by people who previously held K0ABI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0ABI, oldest first.
- DUNCAN, ROBERT D NE1995-10-27 → cancelled 2007-10-30
- Pester, Gary W TX2026-09-02 active