Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1ATX callsign genealogy
Currently held by Montgomery, Sean P
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 K1ATX's current licensee, walking backwards.
- McMullen, Sean PWYgranted 2019-01-31cancelled 2020-02-21
Successor callsigns
Callsigns held now by people who previously held K1ATX.
No current licensee on record previously held this callsign.