Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4YXB callsign genealogy
Currently held by MANSFIELD, DAVID 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 K4YXB's current licensee, walking backwards.
- MANSFIELD, DAVID EGAgranted 2015-01-27cancelled 2017-11-28
Successor callsigns
Callsigns held now by people who previously held K4YXB.
No current licensee on record previously held this callsign.