Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA7ECF callsign genealogy
Currently held by O Donnell, Charles F
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 WA7ECF's current licensee, walking backwards.
- O'DONNELL, CHUCK FMTgranted 2019-12-17cancelled 2020-01-10
Successor callsigns
Callsigns held now by people who previously held WA7ECF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WA7ECF, oldest first.
- O Donnell, Charles F MT2005-07-06 → cancelled 2017-07-07
- O'DONNELL, CHUCK F MT2020-01-10 active