Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4FJC callsign genealogy
Currently held by Callahan, Francis J
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 W4FJC's current licensee, walking backwards.
- Callahan, Francis JKYgranted 2015-11-18cancelled 2016-02-09
Successor callsigns
Callsigns held now by people who previously held W4FJC.
No current licensee on record previously held this callsign.