Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W7MTK callsign genealogy
Currently held by Kartchner, Michael T
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 W7MTK's current licensee, walking backwards.
- Kartchner, Michael TWAgranted 2017-06-22cancelled 2017-07-14
Successor callsigns
Callsigns held now by people who previously held W7MTK.
No current licensee on record previously held this callsign.