Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W5TNK callsign genealogy
Currently held by BARTLEY, TIMOTHY 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 W5TNK's current licensee, walking backwards.
- Kaiser, Timothy NOKgranted 2013-11-19cancelled 2013-12-10
Successor callsigns
Callsigns held now by people who previously held W5TNK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5TNK, oldest first.
- BARTLEY, TIMOTHY A TX1988-03-01 → cancelled 2000-03-02
- Kaiser, Timothy N OK2013-12-10 → cancelled 2026-03-07