Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4PHM callsign genealogy
Currently held by MASON, PATRICK H
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 W4PHM's current licensee, walking backwards.
- MASON, PATRICK HVAgranted 2000-01-13cancelled 2000-02-29
Successor callsigns
Callsigns held now by people who previously held W4PHM.
No current licensee on record previously held this callsign.