Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WA5ABI callsign genealogy
Currently held by Williams, Caleb 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 WA5ABI's current licensee, walking backwards.
- Williams, Caleb LARgranted 2024-02-28cancelled 2024-03-19
Successor callsigns
Callsigns held now by people who previously held WA5ABI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WA5ABI, oldest first.
- Graf, Martha B VA2011-10-01 → cancelled 2023-10-06
- Williams, Caleb L AR2024-03-19 active