Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA1PRR callsign genealogy
Currently held by McDonald, WILLIAM S
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 KA1PRR'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 KA1PRR.
- McDonald, WILLIAM SMAgranted 2026-02-03