Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC0IBH callsign genealogy
Currently held by Dahlberg, Ryan D
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 KC0IBH's current licensee, walking backwards.
- DAHLBERG, RYAN DCOgranted 1998-10-14cancelled 2000-05-31
Successor callsigns
Callsigns held now by people who previously held KC0IBH.
- Dahlberg, Ryan DFLgranted 2020-07-01