Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WW4AA callsign genealogy
Currently held by Checa, Miguel 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 WW4AA's current licensee, walking backwards.
- Checa, Miguel AGAgranted 2012-05-04cancelled 2012-07-06
Successor callsigns
Callsigns held now by people who previously held WW4AA.
- HAMMOND, DON WALgranted 2019-02-05
All historical holders
Every license row we've seen with the callsign WW4AA, oldest first.
- Checa, Miguel A GA2022-06-17 active
- HAMMOND, DON W— → cancelled 1999-04-21