Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KT0L callsign genealogy
Currently held by KARCH, RICHARD 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 KT0L's current licensee, walking backwards.
- KARCH, RICHARD ACOgranted 2000-07-22cancelled 2001-02-06
Successor callsigns
Callsigns held now by people who previously held KT0L.
- RENNER, WALTER KIAgranted 2016-10-03