Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4BBT callsign genealogy
Currently held by Gladwell, Donal W
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 W4BBT's current licensee, walking backwards.
- Gladwell, Donal WNCgranted 2016-11-22cancelled 2016-12-13
Successor callsigns
Callsigns held now by people who previously held W4BBT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4BBT, oldest first.
- PARKER JR, MERRILL B TN1995-06-22 → cancelled 2007-06-23
- Gladwell, Donal W NC2016-12-13 active