Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9MTR callsign genealogy
Currently held by Karpinecz, Matthew G
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 K9MTR's current licensee, walking backwards.
- Karpinecz, Matthew GNJgranted 2010-12-01cancelled 2011-09-17
Successor callsigns
Callsigns held now by people who previously held K9MTR.
No current licensee on record previously held this callsign.