Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4MFM callsign genealogy
Currently held by O'Mara, Sean P
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 W4MFM's current licensee, walking backwards.
- O MARA, SEAN PVAgranted 2000-05-18cancelled 2000-06-17
Successor callsigns
Callsigns held now by people who previously held W4MFM.
No current licensee on record previously held this callsign.