Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1JOS callsign genealogy
Currently held by PARENT, DELMAR J
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 K1JOS's current licensee, walking backwards.
- Stern, Jerry OCTgranted 2005-12-06cancelled 2006-01-10
Successor callsigns
Callsigns held now by people who previously held K1JOS.
- Stern, Jerry ONYgranted 2026-01-03
All historical holders
Every license row we've seen with the callsign K1JOS, oldest first.
- PARENT, DELMAR J AZ1989-12-12 → cancelled 2002-03-07
- Stern, Jerry O NY2015-11-17 → cancelled 2016-03-01