Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA1MA callsign genealogy
Currently held by HOROWITZ, DANIEL AUSTIN
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 AA1MA's current licensee, walking backwards.
- HOROWITZ, DANIEL AUSTINMAgranted 2015-09-02cancelled 2019-02-05
Successor callsigns
Callsigns held now by people who previously held AA1MA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AA1MA, oldest first.
- Pienton, Walter J MA2014-08-05 → cancelled 2015-12-19
- HOROWITZ, DANIEL AUSTIN MA2019-02-05 active