Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI4OF callsign genealogy
Currently held by Barnett, 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 AI4OF's current licensee, walking backwards.
- Barnett, Philip RFLgranted 2004-01-12cancelled 2006-02-15
Successor callsigns
Callsigns held now by people who previously held AI4OF.
- Barnett, PhilFLgranted 2011-07-15cancelled 2021-06-23