Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0SMO callsign genealogy
Currently held by WILLIS, JOSEPH 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 K0SMO's current licensee, walking backwards.
- WILLIS, JOSEPH Lcancelled 1998-04-22
Successor callsigns
Callsigns held now by people who previously held K0SMO.
No current licensee on record previously held this callsign.