Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W8BIT callsign genealogy
Currently held by SZUBA, EDWARD A
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 W8BIT's current licensee, walking backwards.
- Graybill, Mark ACAgranted 2011-11-23cancelled 2012-01-04
Successor callsigns
Callsigns held now by people who previously held W8BIT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W8BIT, oldest first.
- SZUBA, EDWARD A MI1997-03-25 → cancelled 2009-03-26
- Graybill, Mark A FL2021-12-22 active