Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4RPI callsign genealogy
Currently held by CALLAHAN, PATRICK 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 N4RPI's current licensee, walking backwards.
- CALLAHAN, PATRICK MVAgranted 2008-11-10cancelled 2009-01-16
Successor callsigns
Callsigns held now by people who previously held N4RPI.
- BAILEY, ALBERT RVAgranted 1990-07-24cancelled 2002-07-25