Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC6VOP callsign genealogy
Currently held by GUARDADO, FRANCISCO
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 KC6VOP's current licensee, walking backwards.
- McNulty, Joseph RCAgranted 2012-08-20cancelled 2012-12-04
Successor callsigns
Callsigns held now by people who previously held KC6VOP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC6VOP, oldest first.
- GUARDADO, FRANCISCO CA1991-05-28 → cancelled 2003-05-29
- McNulty, Joseph R CA2012-12-04 → cancelled 2024-12-05