Confidence: Medium · Source: FCC ULS · As of 2026-09-11
AF4TP callsign genealogy
Currently held by SPIRES, CHARLES 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 AF4TP's current licensee, walking backwards.
- SPIRES, CHARLES RGAgranted 1992-02-04cancelled 2000-05-16
Successor callsigns
Callsigns held now by people who previously held AF4TP.
No current licensee on record previously held this callsign.