Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NP4BC callsign genealogy
Currently held by Calventy, Bernardo
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 NP4BC's current licensee, walking backwards.
- Calventy, BernardoPRgranted 2001-08-16cancelled 2006-01-07
Successor callsigns
Callsigns held now by people who previously held NP4BC.
No current licensee on record previously held this callsign.