Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7AHF callsign genealogy
Currently held by CALDER, DAVID M
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 K7AHF's current licensee, walking backwards.
- HEWUS FRESH, ANDREW AORgranted 2013-01-23cancelled 2021-04-27
Successor callsigns
Callsigns held now by people who previously held K7AHF.
- CALDER, DAVID MUTgranted 2018-11-24
All historical holders
Every license row we've seen with the callsign K7AHF, oldest first.
- CALDER, DAVID M UT2015-10-08 → cancelled 2018-11-24
- HEWUS FRESH, ANDREW A OR2021-04-27 active