Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AB4DE callsign genealogy
Currently held by PRATT, MICHAEL L
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 AB4DE's current licensee, walking backwards.
- CLARK, TIMOTHY EGAgranted 2011-11-23cancelled 2019-10-29
Successor callsigns
Callsigns held now by people who previously held AB4DE.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AB4DE, oldest first.
- PRATT, MICHAEL L TN2006-11-18 → cancelled 2019-02-12
- Clark Mr, Timothy E GA2019-10-29 active