Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9CMG callsign genealogy
Currently held by Johnson, Kim A
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 W9CMG's current licensee, walking backwards.
- JOHNSON, MARK LMNgranted 2014-12-09cancelled 2018-12-28
Successor callsigns
Callsigns held now by people who previously held W9CMG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9CMG, oldest first.
- Johnson, Kim A MN2007-04-24 → cancelled 2017-03-04
- JOHNSON, MARK L MN2018-12-28 active