Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W6MAO callsign genealogy
Currently held by NEWMAN, HERBERT W
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 W6MAO's current licensee, walking backwards.
- Ollman, Michael ACAgranted 2013-07-31cancelled 2017-02-24
Successor callsigns
Callsigns held now by people who previously held W6MAO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6MAO, oldest first.
- NEWMAN, HERBERT W CA1997-05-22 → cancelled 2009-05-23
- Ollman, Michael A CA2017-02-24 active