Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI4CB callsign genealogy
Currently held by Holtz, Ronald L
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 AI4CB's current licensee, walking backwards.
- Holtz, Ronald LVAgranted 2002-12-17cancelled 2003-10-14
Successor callsigns
Callsigns held now by people who previously held AI4CB.
- Holtz, Ronald LVAgranted 2006-04-28cancelled 2011-06-07