Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB1IAC callsign genealogy
Currently held by Herzig, Justin F
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 KB1IAC's current licensee, walking backwards.
- Herzig, Justin FMAgranted 2024-03-05cancelled 2024-03-26
Successor callsigns
Callsigns held now by people who previously held KB1IAC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB1IAC, oldest first.
- Herzig, Justin F MA2002-03-20 → cancelled 2014-03-21
- Herzig, Justin F MA2024-03-26 active