Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WM3O callsign genealogy
Currently held by Hanlon, Steven C
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 WM3O's current licensee, walking backwards.
- Hanlon, Steven CMDgranted 2003-07-14cancelled 2005-07-02
Successor callsigns
Callsigns held now by people who previously held WM3O.
- BROWN, JAMES LPAgranted 2022-02-02
All historical holders
Every license row we've seen with the callsign WM3O, oldest first.
- BROWN, JAMES L SC2001-02-22 → cancelled 2002-04-16
- Hanlon, Steven C PA2025-06-04 active