Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0GRU callsign genealogy
Currently held by Medina, Christopher 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 K0GRU's current licensee, walking backwards.
- Medina, Christopher RCOgranted 2016-11-21cancelled 2016-12-13
Successor callsigns
Callsigns held now by people who previously held K0GRU.
No current licensee on record previously held this callsign.