Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AG4FO callsign genealogy
Currently held by Tombaugh Jr, John 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 AG4FO's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AG4FO.
- Tombaugh Jr, John RPAgranted 2001-02-10cancelled 2004-08-24