Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9PTZ callsign genealogy
Currently held by McGRAW, RYAN L
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 KC9PTZ's current licensee, walking backwards.
- McGRAW, RYAN LILgranted 2009-04-15cancelled 2009-05-12
Successor callsigns
Callsigns held now by people who previously held KC9PTZ.
- McGRAW, RYAN LILgranted 2020-08-21