Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF4HMM callsign genealogy
Currently held by CONKLIN, JAMES 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 KF4HMM's current licensee, walking backwards.
- MILLER JR, HARRY MSCgranted 2020-12-21cancelled 2021-01-09
Successor callsigns
Callsigns held now by people who previously held KF4HMM.
- MILLER JR, HARRY MSCgranted 2021-03-09
All historical holders
Every license row we've seen with the callsign KF4HMM, oldest first.
- CONKLIN, JAMES H VA1996-03-11 → cancelled 2008-03-12
- Miller Jr, Harry M SC2021-01-09 → cancelled 2021-03-09