Confidence: Medium · Source: FCC ULS · As of 2026-09-11
KB4ASN callsign genealogy
Currently held by SHEFFIELD JR, DANNIE C
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 KB4ASN's current licensee, walking backwards.
- SHEFFIELD JR, DANNIE CNCgranted 2021-06-14cancelled 2021-07-07
Successor callsigns
Callsigns held now by people who previously held KB4ASN.
No current licensee on record previously held this callsign.