Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC0NO callsign genealogy
Currently held by St. John, Phillip E
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 AC0NO's current licensee, walking backwards.
- St John, Phillip EMOgranted 2008-07-22cancelled 2009-01-06
Successor callsigns
Callsigns held now by people who previously held AC0NO.
No current licensee on record previously held this callsign.