Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1MRT callsign genealogy
Currently held by Tierney, Matthew 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 K1MRT's current licensee, walking backwards.
- Tierney, Matthew RMAgranted 2006-11-17cancelled 2006-12-12
Successor callsigns
Callsigns held now by people who previously held K1MRT.
No current licensee on record previously held this callsign.