Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KQ4ZEI callsign genealogy
Currently held by Isothermal Amateur Radio Club
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 KQ4ZEI's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KQ4ZEI.
- KI4APJactiveIsothermal Amateur Radio ClubNCgranted 2024-12-17