Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK6PH callsign genealogy
Currently held by PRIMBSCH, JOHN H
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 KK6PH's current licensee, walking backwards.
- HENRY, PETER SCAgranted 2025-02-28cancelled 2025-03-18
Successor callsigns
Callsigns held now by people who previously held KK6PH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KK6PH, oldest first.
- PRIMBSCH, JOHN H CA2001-03-28 → cancelled 2005-03-06
- HENRY, PETER S CA2025-03-18 active