Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7MKC callsign genealogy
Currently held by BARR, JOHN R
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 W7MKC's current licensee, walking backwards.
- BARR, JOHN RIDgranted 2016-10-25cancelled 2016-11-15
Successor callsigns
Callsigns held now by people who previously held W7MKC.
No current licensee on record previously held this callsign.