Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI6SF callsign genealogy
Currently held by McElfresh, James S
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 AI6SF's current licensee, walking backwards.
- McElfresh, James SCAgranted 2016-06-09cancelled 2016-08-11
Successor callsigns
Callsigns held now by people who previously held AI6SF.
No current licensee on record previously held this callsign.