Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N9PHI callsign genealogy
Currently held by SCHAAL, ROY 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 N9PHI's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held N9PHI.
- SCHAAL, ROY AILgranted 2020-03-02