Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4CZR callsign genealogy
Currently held by Richardson, Jacob T
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 K4CZR's current licensee, walking backwards.
- Richardson, Jacob TKYgranted 2025-01-22cancelled 2025-02-21
Successor callsigns
Callsigns held now by people who previously held K4CZR.
No current licensee on record previously held this callsign.