Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB4XD callsign genealogy
Currently held by McCall, Robert D
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 KB4XD's current licensee, walking backwards.
- McCall, Robert DTNgranted 2024-04-30
Successor callsigns
Callsigns held now by people who previously held KB4XD.
- McCall, Robert DTNgranted 2024-04-30