Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA9PS callsign genealogy
Currently held by BOONCHIENG, EKKARAT
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 AA9PS's current licensee, walking backwards.
- Smith, Philip JILgranted 2018-07-24cancelled 2023-08-11
Successor callsigns
Callsigns held now by people who previously held AA9PS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AA9PS, oldest first.
- BOONCHIENG, EKKARAT IL1995-07-27 → cancelled 2004-07-22
- Smith, Philip J IL2023-08-11 active