Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB4KH callsign genealogy
Currently held by GARRETT, MAX B
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 KB4KH's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KB4KH.
- GARRETT, MAX BALgranted 1998-01-22cancelled 1999-10-28
All historical holders
Every license row we've seen with the callsign KB4KH, oldest first.
- GARRETT, MAX B AL2009-09-18 → cancelled 2015-08-17
- GARRETT, MAX B— → cancelled 1998-01-22