Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1MRF callsign genealogy
Currently held by Fishman, Michael 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 K1MRF's current licensee, walking backwards.
- Fishman, Michael RMAgranted 2016-07-13cancelled 2016-08-02
Successor callsigns
Callsigns held now by people who previously held K1MRF.
- Fishman, Michael RMAgranted 2017-01-10cancelled 2019-02-20