Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC4YTP callsign genealogy
Currently held by HOLCOMB, WILLIAM H
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 KC4YTP'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 KC4YTP.
- HOLCOMB, WILLIAM HFLgranted 2000-06-09cancelled 2009-09-29