Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD0YM callsign genealogy
Currently held by Smith, Michael S
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 AD0YM's current licensee, walking backwards.
- Smith, Michael SMOgranted 2017-05-03cancelled 2017-06-07
Successor callsigns
Callsigns held now by people who previously held AD0YM.
No current licensee on record previously held this callsign.