Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W5PTX callsign genealogy
Currently held by Johnson Jr, Mark A
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 W5PTX's current licensee, walking backwards.
- Johnson Jr, Mark ATXgranted 2020-12-17cancelled 2022-03-29
Successor callsigns
Callsigns held now by people who previously held W5PTX.
- MALLORY, EDGAR ROKgranted 2014-01-28cancelled 2017-12-30
All historical holders
Every license row we've seen with the callsign W5PTX, oldest first.
- Mallory, Edgar R OK2010-12-04 → cancelled 2014-01-28
- Johnson Jr, Mark A TX2022-03-29 active