Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0CBJ callsign genealogy
Currently held by Potzler, J 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 W0CBJ's current licensee, walking backwards.
- Potzler, J ESDgranted 2017-10-20cancelled 2017-11-07
Successor callsigns
Callsigns held now by people who previously held W0CBJ.
- Potzler, J ESDgranted 2018-11-24