Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB9OY callsign genealogy
Currently held by Spratt, Philip R
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 AB9OY's current licensee, walking backwards.
- Spratt, Philip RWIgranted 1997-11-25cancelled 2007-07-19
Successor callsigns
Callsigns held now by people who previously held AB9OY.
- Spratt, Philip RWIgranted 2021-03-10