Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W0RHP callsign genealogy
Currently held by MUTH SR, PHILIP A
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 W0RHP's current licensee, walking backwards.
- MUTH JR, PHILIP AOKgranted 2000-01-26cancelled 2006-12-29
Successor callsigns
Callsigns held now by people who previously held W0RHP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0RHP, oldest first.
- MUTH SR, PHILIP A WI1998-02-20 → cancelled 2006-09-29
- MUTH JR, PHILIP A KS2016-12-15 active