Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0FSB callsign genealogy
Currently held by FIVE SULLIVAN BROTHERS ARC
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 W0FSB's current licensee, walking backwards.
- KC0OCYcancelledFive Sullivan Brothers ARCIAgranted 2002-09-24cancelled 2003-03-08
Successor callsigns
Callsigns held now by people who previously held W0FSB.
No current licensee on record previously held this callsign.