Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB3FR callsign genealogy
Currently held by Shaffer, Charles A
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 AB3FR's current licensee, walking backwards.
- Shaffer, Charles APAgranted 2002-11-05cancelled 2007-06-26
Successor callsigns
Callsigns held now by people who previously held AB3FR.
No current licensee on record previously held this callsign.