Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7KOA callsign genealogy
Currently held by Carranza, Oscar A
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 K7KOA's current licensee, walking backwards.
- Carranza, Oscar AIDgranted 2012-03-13cancelled 2016-07-19
Successor callsigns
Callsigns held now by people who previously held K7KOA.
- Ormandy, Michael LAZgranted 2014-03-11cancelled 2016-10-07
All historical holders
Every license row we've seen with the callsign K7KOA, oldest first.
- Ormandy, Michael L AZ2013-11-13 → cancelled 2014-03-11
- Carranza, Oscar A ID2026-06-12 active