Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7HHK callsign genealogy
Currently held by KIRCH, MARK P
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 K7HHK's current licensee, walking backwards.
- KIRCH, MARK PAZgranted 2012-09-25cancelled 2020-10-23
Successor callsigns
Callsigns held now by people who previously held K7HHK.
- KIRCH, MARK PAZgranted 2021-10-26cancelled 2023-02-11