Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5AOS callsign genealogy
Currently held by Mcharg, Shawn E
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 K5AOS's current licensee, walking backwards.
- Mcharg, Shawn ETXgranted 2017-02-22cancelled 2018-08-24
Successor callsigns
Callsigns held now by people who previously held K5AOS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5AOS, oldest first.
- Martin, Leonard D TX2006-07-25 → cancelled 2018-07-26
- Mcharg, Shawn E TX2018-08-24 active