Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4MAB callsign genealogy
Currently held by Barrera, Murphy 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 W4MAB's current licensee, walking backwards.
- BARRERA, MURPHY ASCgranted 2018-07-18cancelled 2018-08-24
Successor callsigns
Callsigns held now by people who previously held W4MAB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4MAB, oldest first.
- Brown, Michele A FL2004-05-07 → cancelled 2016-05-10
- Barrera, Murphy A CO2018-08-24 active