Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0BC callsign genealogy
Currently held by Rotzoll, Robert R
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 W0BC's current licensee, walking backwards.
- Rotzoll, Robert RCOgranted 1998-10-21cancelled 2005-05-10
Successor callsigns
Callsigns held now by people who previously held W0BC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0BC, oldest first.
- WILLIAMS, WADE H KS1997-01-06 → cancelled 2003-04-21
- Rotzoll, Robert R CO2025-04-01 active