Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W5TTW callsign genealogy
Currently held by OSBURN, OWEN L
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 W5TTW's current licensee, walking backwards.
- Culin, Paul ATXgranted 2009-07-16cancelled 2009-11-13
Successor callsigns
Callsigns held now by people who previously held W5TTW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5TTW, oldest first.
- OSBURN, OWEN L TX1996-05-09 → cancelled 2002-09-15
- Culin, Paul A TX2019-08-27 active