Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC0IFA callsign genealogy
Currently held by Shelhammer, Donald E
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 KC0IFA'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 KC0IFA.
- Shelhammer, Donald EMOgranted 2020-07-14