Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KL7DH callsign genealogy
Currently held by Harpham, Darrel E
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 KL7DH's current licensee, walking backwards.
- HARPHAM, DARREL EAKgranted 1998-10-19cancelled 2000-12-19
Successor callsigns
Callsigns held now by people who previously held KL7DH.
- MUSE, LARRY GWAgranted 1992-10-20cancelled 2000-05-09