Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB1CAP callsign genealogy
Currently held by Cap, Jon 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 WB1CAP's current licensee, walking backwards.
- Cap, Jon ECTgranted 2024-07-17cancelled 2024-08-06
Successor callsigns
Callsigns held now by people who previously held WB1CAP.
- KNOX, KENNETH AMOgranted 2018-02-15
All historical holders
Every license row we've seen with the callsign WB1CAP, oldest first.
- Cap, Jon E CT2024-08-06 active
- KNOX, KENNETH A— → cancelled 1998-04-22