Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4AFU callsign genealogy
Currently held by SMITH, MICHAEL A
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 W4AFU's current licensee, walking backwards.
- SMITH, MICHAEL AALgranted 2013-09-09cancelled 2021-02-23
Successor callsigns
Callsigns held now by people who previously held W4AFU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4AFU, oldest first.
- MARTIN, WILLIAM E NC2007-02-14 → cancelled 2019-03-28
- SMITH, MICHAEL A AL2021-02-23 active