Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KT4PI callsign genealogy
Currently held by SICKMEN, WALT M
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 KT4PI'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 KT4PI.
- SICKMEN, WALT MVAgranted 1997-11-19cancelled 2007-10-30