Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC2SF callsign genealogy
Currently held by Foster, Stephen M
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 AC2SF's current licensee, walking backwards.
- Foster, Stephen MNYgranted 2001-12-07cancelled 2008-01-01
Successor callsigns
Callsigns held now by people who previously held AC2SF.
No current licensee on record previously held this callsign.