Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK4RHL callsign genealogy
Currently held by COLLINS JR, WILLIAM L
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 KK4RHL's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KK4RHL.
- COLLINS JR, WILLIAM LNCgranted 2013-05-20cancelled 2014-07-04