Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0CST callsign genealogy
Currently held by PETERFESO SR, ROBERT 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 W0CST's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W0CST.
No current licensee on record previously held this callsign.