Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC0MDA callsign genealogy
Currently held by Shaw, Nathan A
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 KC0MDA's current licensee, walking backwards.
- ARNOLD, MICHAEL DMOgranted 1998-04-29cancelled 2006-01-10
Successor callsigns
Callsigns held now by people who previously held KC0MDA.
All historical holders
Every license row we've seen with the callsign KC0MDA, oldest first.
- Shaw, Nathan A IA2002-01-15 → cancelled 2002-04-10
- ARNOLD, MICHAEL D MO2015-12-15 → cancelled 2018-07-20