Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4NBF callsign genealogy
Currently held by Sewell, Alvin D
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 W4NBF's current licensee, walking backwards.
- Sewell, Alvin DARgranted 2019-11-30cancelled 2024-07-19
Successor callsigns
Callsigns held now by people who previously held W4NBF.
All historical holders
Every license row we've seen with the callsign W4NBF, oldest first.
- SEWELL, ALVIN D FL2006-12-19 → cancelled 2013-07-23
- Sewell, Alvin D AR2017-12-19 → cancelled 2019-11-30