Confidence: Medium · Source: FCC ULS · As of 2026-09-11
KU4MP callsign genealogy
Currently held by Viers, Mark B
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 KU4MP's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KU4MP.
No current licensee on record previously held this callsign.