Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC0RO callsign genealogy
Currently held by CYBULSKI, DANIEL 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 AC0RO's current licensee, walking backwards.
- CYBULSKI, DANIEL JMOgranted 2005-01-06cancelled 2010-03-13
Successor callsigns
Callsigns held now by people who previously held AC0RO.
No current licensee on record previously held this callsign.