Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB7O callsign genealogy
Currently held by ALLARD, FRANK 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 WB7O's current licensee, walking backwards.
- Lopez Jr, Don MWAgranted 2016-11-03cancelled 2019-05-03
Successor callsigns
Callsigns held now by people who previously held WB7O.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WB7O, oldest first.
- ALLARD, FRANK A ID2008-11-18 → cancelled 2017-04-13
- Lopez Jr, Don M WA2019-05-03 active