Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KB6AGH callsign genealogy
Currently held by Ruth, Mark E
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 KB6AGH's current licensee, walking backwards.
- Ruth, Mark EMOgranted 2021-03-22cancelled 2021-05-07
Successor callsigns
Callsigns held now by people who previously held KB6AGH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB6AGH, oldest first.
- RUTH, MARK E MO2005-03-01 → cancelled 2017-05-26
- Ruth, Mark E MO2021-05-07 active