Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W0AAU callsign genealogy
Currently held by HAMMOND, ALFRED H
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 W0AAU's current licensee, walking backwards.
- HENRY, RONALDKSgranted 2005-04-28cancelled 2014-01-25
Successor callsigns
Callsigns held now by people who previously held W0AAU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0AAU, oldest first.
- HAMMOND, ALFRED H MN2002-02-26 → cancelled 2003-12-04
- HENRY, RONALD KS2024-04-02 active