Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7RSZ callsign genealogy
Currently held by Osburn, Tim E
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 W7RSZ's current licensee, walking backwards.
- OSBURN, TIM EWAgranted 1999-05-27cancelled 2002-03-20
Successor callsigns
Callsigns held now by people who previously held W7RSZ.
- Osburn, Tim EWAgranted 2019-10-01