Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AC1RK callsign genealogy
Currently held by HARWOOD, 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 AC1RK's current licensee, walking backwards.
- HARWOOD, MICHAEL RMAgranted 2022-04-16cancelled 2024-04-02
Successor callsigns
Callsigns held now by people who previously held AC1RK.
- HARWOOD, MICHAEL RMAgranted 2025-03-18