Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC0YC callsign genealogy
Currently held by HILDEBRANT, MARC 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 AC0YC's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AC0YC.
- HILDEBRANT, MARC SMAgranted 2017-04-12