Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9CUM callsign genealogy
Currently held by Canines United In Modulation
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 K9CUM's current licensee, walking backwards.
- KF0VYTcancelledCanines United In ModulationMOgranted 2026-01-01cancelled 2026-01-21
Successor callsigns
Callsigns held now by people who previously held K9CUM.
No current licensee on record previously held this callsign.