Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4MUW callsign genealogy
Currently held by RANKIN JR, WILLIAM 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 K4MUW's current licensee, walking backwards.
- RANKIN JR, WILLIAM PGAgranted 1996-09-04cancelled 2001-07-17
Successor callsigns
Callsigns held now by people who previously held K4MUW.
No current licensee on record previously held this callsign.