Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6YYZ callsign genealogy
Currently held by Bitner, Robert M
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 W6YYZ's current licensee, walking backwards.
- Bitner, Robert MCAgranted 2015-05-21cancelled 2015-07-11
Successor callsigns
Callsigns held now by people who previously held W6YYZ.
- Bitner, Robert MCAgranted 2025-06-06
All historical holders
Every license row we've seen with the callsign W6YYZ, oldest first.
- LYNCH, ROBERT H CA2002-12-03 → cancelled 2014-12-04
- Bitner, Robert M CA2025-04-15 → cancelled 2025-06-06