Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC0AZ callsign genealogy
Currently held by FELTER, DAVID 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 KC0AZ's current licensee, walking backwards.
- FELTER, DAVID JKSgranted 2022-12-09cancelled 2023-10-28
Successor callsigns
Callsigns held now by people who previously held KC0AZ.
- FELTER, DAVID JKSgranted 2022-12-09cancelled 2023-10-28
All historical holders
Every license row we've seen with the callsign KC0AZ, oldest first.
- FELTER, DAVID J KS2021-08-06 → cancelled 2022-12-09
- FELTER, DAVID J KS2023-10-28 active