Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N5TJA callsign genealogy
Currently held by CAMPBELL, WILLIAM 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 N5TJA's current licensee, walking backwards.
- Allison, Timothy JTXgranted 2008-04-25cancelled 2008-06-07
Successor callsigns
Callsigns held now by people who previously held N5TJA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N5TJA, oldest first.
- CAMPBELL, WILLIAM B TX1991-05-07 → cancelled 2003-05-08
- ALLISON, TIMOTHY J TX2008-06-07 → cancelled 2020-06-09