Confidence: Medium · Source: FCC ULS · As of 2026-09-11
N4MPY callsign genealogy
Currently held by MC ILRATH, JOHN R
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 N4MPY's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held N4MPY.
- MC ILRATH, JOHN RVAgranted 2009-12-22cancelled 2022-02-09