Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1BYN callsign genealogy
Currently held by Stanek, William S
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 W1BYN's current licensee, walking backwards.
- Stanek, William SCTgranted 2004-11-23cancelled 2005-04-12
Successor callsigns
Callsigns held now by people who previously held W1BYN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1BYN, oldest first.
- STANEK, WILLIAM F CT2004-04-20 → cancelled 2004-06-13
- Stanek, William S CT2015-04-11 active