Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AA1TX callsign genealogy
Currently held by SANTOS, CARLOS M
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 AA1TX's current licensee, walking backwards.
- Tarbox Jr, Robert FNHgranted 2016-06-23cancelled 2023-05-06
Successor callsigns
Callsigns held now by people who previously held AA1TX.
- SANTOS, CARLOS MFLgranted 2018-07-04
All historical holders
Every license row we've seen with the callsign AA1TX, oldest first.
- Tarbox Jr, Robert F NH2023-05-06 active
- SANTOS, CARLOS M— → cancelled 1998-08-17