Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6POO callsign genealogy
Currently held by Schachter, Justin H
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 K6POO's current licensee, walking backwards.
- ST JOHN, JOHN ACAgranted 2021-01-05cancelled 2021-02-09
Successor callsigns
Callsigns held now by people who previously held K6POO.
- Schachter, Justin HCTgranted 2018-04-20
All historical holders
Every license row we've seen with the callsign K6POO, oldest first.
- Schachter, Justin H CT2017-10-28 → cancelled 2018-04-20
- St John, John A CA2021-02-09 active