Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9CZR callsign genealogy
Currently held by DETMER, PAUL C
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 K9CZR's current licensee, walking backwards.
- DETMER, PAUL CILgranted 2007-05-24cancelled 2011-06-14
Successor callsigns
Callsigns held now by people who previously held K9CZR.
No current licensee on record previously held this callsign.