Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AF4YR callsign genealogy
Currently held by PFEIFFER JR, DANIEL 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 AF4YR's current licensee, walking backwards.
- Pfeiffer Jr, Daniel RALgranted 1999-09-24cancelled 2000-06-15
Successor callsigns
Callsigns held now by people who previously held AF4YR.
No current licensee on record previously held this callsign.