Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0ACK callsign genealogy
Currently held by ALVORD, WILLIAM R
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 W0ACK's current licensee, walking backwards.
- ALVORD, WILLIAM RMOgranted 2003-09-03cancelled 2006-03-14
Successor callsigns
Callsigns held now by people who previously held W0ACK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0ACK, oldest first.
- ALVORD, DONALD E MO2004-11-19 → cancelled 2005-12-01
- ALVORD, WILLIAM R MO2026-01-30 active