Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W6KZS callsign genealogy
Currently held by Philipson, Robert 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 W6KZS's current licensee, walking backwards.
- Philipson, Robert ACAgranted 2025-02-05cancelled 2025-02-25
Successor callsigns
Callsigns held now by people who previously held W6KZS.
- Philipson, Robert ACAgranted 2025-04-22
All historical holders
Every license row we've seen with the callsign W6KZS, oldest first.
- RENSHAW, JOHN W CA1988-06-21 → cancelled 2000-06-22
- Philipson, Robert A CA2025-02-25 → cancelled 2025-04-22