Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4GHP callsign genealogy
Currently held by Miller, Michael D
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 K4GHP's current licensee, walking backwards.
- PASSNER, GLEN HNCgranted 2015-11-18cancelled 2025-01-22
Successor callsigns
Callsigns held now by people who previously held K4GHP.
- Miller, Michael DNHgranted 2005-12-28cancelled 2010-11-16
All historical holders
Every license row we've seen with the callsign K4GHP, oldest first.
- Miller, Michael D NH2005-12-28 → cancelled 2008-10-28
- PASSNER, GLEN H NC2025-01-22 active