Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0MMO callsign genealogy
Currently held by Crosby, Keith M
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 K0MMO's current licensee, walking backwards.
- Crosby, Keith MMOgranted 2001-03-13cancelled 2009-02-03
Successor callsigns
Callsigns held now by people who previously held K0MMO.
No current licensee on record previously held this callsign.