Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4MCP callsign genealogy
Currently held by LANGSTON JR, GARY M
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 K4MCP's current licensee, walking backwards.
- LANGSTON JR, GARY MNCgranted 1998-09-30cancelled 2001-04-14
Successor callsigns
Callsigns held now by people who previously held K4MCP.
No current licensee on record previously held this callsign.