Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7JOS callsign genealogy
Currently held by SINDT, JAMES O
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 K7JOS's current licensee, walking backwards.
- SINDT, JAMES Ocancelled 1998-10-05
Successor callsigns
Callsigns held now by people who previously held K7JOS.
- Sindt, James oORgranted 2018-04-27