Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC9PTU callsign genealogy
Currently held by KN9OX Repeater Association
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 KC9PTU'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 KC9PTU.
- KN9OXactiveKN9OX Repeater AssociationINgranted 2019-04-25