Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K7MTN callsign genealogy
Currently held by CORDERY, MATTHEW J
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 K7MTN's current licensee, walking backwards.
- SHOWALTER, DANIEL SOKgranted 2009-03-04cancelled 2012-01-14
Successor callsigns
Callsigns held now by people who previously held K7MTN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7MTN, oldest first.
- CORDERY, MATTHEW J CA1999-04-21 → cancelled 2011-04-22
- SHOWALTER, DANIEL S TX2022-01-05 active