Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5MGR callsign genealogy
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 W5MGR's current licensee, walking backwards.
- Grimes, John MOKgranted 2017-08-09cancelled 2017-08-29
Successor callsigns
Callsigns held now by people who previously held W5MGR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5MGR, oldest first.
- Grimes, John M OK2017-08-29 active
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