Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD7TH callsign genealogy
Currently held by Robinson, Michael 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 AD7TH's current licensee, walking backwards.
- Robinson, Michael JWAgranted 2004-02-18cancelled 2008-04-15
Successor callsigns
Callsigns held now by people who previously held AD7TH.
No current licensee on record previously held this callsign.