Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB4AW callsign genealogy
Currently held by ESTEVEZ, MARTA
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 KB4AW's current licensee, walking backwards.
- Crawley Jr, Allen RSCgranted 2024-04-04cancelled 2024-06-08
Successor callsigns
Callsigns held now by people who previously held KB4AW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB4AW, oldest first.
- ESTEVEZ, MARTA FL2005-04-01 → cancelled 2017-06-27
- Crawley Jr, Allen R SC2024-06-08 active