Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5CRM callsign genealogy
Currently held by Martindale, Clark R
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 K5CRM's current licensee, walking backwards.
- Martindale, Clark RTXgranted 2001-08-02cancelled 2001-08-21
Successor callsigns
Callsigns held now by people who previously held K5CRM.
No current licensee on record previously held this callsign.