Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK7HEF callsign genealogy
Currently held by Hefley, Mark H
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 KK7HEF's current licensee, walking backwards.
- Hefley, MarkAZgranted 2022-02-08cancelled 2022-02-26
Successor callsigns
Callsigns held now by people who previously held KK7HEF.
No current licensee on record previously held this callsign.