Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0SGF callsign genealogy
Currently held by Springfield Ham Club
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 K0SGF's current licensee, walking backwards.
- KD0HWYcancelledSpringfield Ham ClubMOgranted 2009-05-22cancelled 2009-07-14
Successor callsigns
Callsigns held now by people who previously held K0SGF.
No current licensee on record previously held this callsign.