Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4YPZ callsign genealogy
Currently held by Smith, Matthew 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 W4YPZ's current licensee, walking backwards.
- Smith, Matthew MFLgranted 2020-08-12cancelled 2020-09-09
Successor callsigns
Callsigns held now by people who previously held W4YPZ.
No current licensee on record previously held this callsign.