Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4MMS callsign genealogy
Currently held by Smith, Mark M
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 W4MMS's current licensee, walking backwards.
- Smith, Mark MGAgranted 1999-12-15cancelled 2001-03-10
Successor callsigns
Callsigns held now by people who previously held W4MMS.
No current licensee on record previously held this callsign.