Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD7OB callsign genealogy
Currently held by Groves, 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 AD7OB's current licensee, walking backwards.
- Groves, Michael JUTgranted 2003-05-31cancelled 2007-06-07
Successor callsigns
Callsigns held now by people who previously held AD7OB.
- Groves, Michael JUTgranted 2017-06-19