Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KA5JAO callsign genealogy
Currently held by Ohman, Julia A
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 KA5JAO's current licensee, walking backwards.
- Ohman, Julia ATXgranted 2017-11-06cancelled 2017-11-25
Successor callsigns
Callsigns held now by people who previously held KA5JAO.
- HALLER JR, ROBERT CWAgranted 2021-03-23
All historical holders
Every license row we've seen with the callsign KA5JAO, oldest first.
- HALLER JR, ROBERT C WA1997-05-06 → cancelled 2001-06-16
- Ohman, Julia A TX2017-11-25 active