Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N5MAS callsign genealogy
Currently held by CHILDRESS, MILTON O
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 N5MAS's current licensee, walking backwards.
- CHILDRESS, DON MTXgranted 2012-05-29cancelled 2017-12-08
Successor callsigns
Callsigns held now by people who previously held N5MAS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N5MAS, oldest first.
- CHILDRESS, MILTON O TX1998-09-15 → cancelled 2010-09-16
- CHILDRESS, DON M TX2017-12-08 active