Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W8MPH callsign genealogy
Currently held by Herboth, 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 W8MPH's current licensee, walking backwards.
- Herboth, Matthew PINgranted 2016-12-12cancelled 2017-05-13
Successor callsigns
Callsigns held now by people who previously held W8MPH.
No current licensee on record previously held this callsign.