Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3TZ callsign genealogy
Currently held by HAMBLEN, JOHN W
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 W3TZ's current licensee, walking backwards.
- SELLERS, HENRY AARgranted 1994-10-19cancelled 2002-12-10
Successor callsigns
Callsigns held now by people who previously held W3TZ.
- SWEENEY, THOMAS FMDgranted 2000-11-17cancelled 2002-09-06
All historical holders
Every license row we've seen with the callsign W3TZ, oldest first.
- HAMBLEN, JOHN W AZ1988-04-05 → cancelled 2000-04-06
- SWEENEY, THOMAS F MD2000-06-20 → cancelled 2000-11-17
- SELLERS, HENRY A AR2022-09-13 active