Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7JAB callsign genealogy
Currently held by THORNHILL, J B
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 W7JAB's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W7JAB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7JAB, oldest first.
- THORNHILL, J B OR1991-07-16 → cancelled 2003-07-18
- BACKSTRAND, JOHN A WA2004-10-09 → cancelled 2016-10-12
- Babb, Joshua A TX2026-08-01 active