Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1MPH callsign genealogy
Currently held by Harvey, Matthew 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 W1MPH's current licensee, walking backwards.
- Harvey, Matthew PMAgranted 2016-10-28cancelled 2016-12-23
Successor callsigns
Callsigns held now by people who previously held W1MPH.
No current licensee on record previously held this callsign.