Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5ABW callsign genealogy
Currently held by Isaac, Keith
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 K5ABW's current licensee, walking backwards.
- Isaac, KeithTXgranted 2026-03-17cancelled 2026-07-14
Successor callsigns
Callsigns held now by people who previously held K5ABW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5ABW, oldest first.
- PRICE III, JAMES M TX2013-04-19 → cancelled 2025-07-08
- Isaac, Keith TX2026-07-14 active