Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA0S callsign genealogy
Currently held by MILBOURN, DOUGLAS R
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 KA0S's current licensee, walking backwards.
- McDougal, Matthew RTNgranted 2004-03-25cancelled 2014-01-24
Successor callsigns
Callsigns held now by people who previously held KA0S.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA0S, oldest first.
- MILBOURN, DOUGLAS R NE2005-04-06 → cancelled 2012-01-04
- McDougal, Matthew R AL2024-01-09 active