Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB6JMM callsign genealogy
Currently held by McGarrahan, Brian T
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 KB6JMM's current licensee, walking backwards.
- McGarrahan, Brian TSCgranted 2024-11-19
Successor callsigns
Callsigns held now by people who previously held KB6JMM.
- McGarrahan, Brian TSCgranted 2024-11-19