Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0SPO callsign genealogy
Currently held by ENDRES, dan J
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 K0SPO's current licensee, walking backwards.
- endres, dan JCOgranted 2022-05-10cancelled 2022-07-29
Successor callsigns
Callsigns held now by people who previously held K0SPO.
No current licensee on record previously held this callsign.