Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4MRS callsign genealogy
Currently held by RAMIREZ, MIGUEL A
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 KP4MRS's current licensee, walking backwards.
- RAMIREZ, MIGUEL APRgranted 1996-08-19cancelled 2005-08-30
Successor callsigns
Callsigns held now by people who previously held KP4MRS.
- RAMIREZ, MIGUEL APRgranted 2026-01-13