Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WP4NDC callsign genealogy
Currently held by ROSA, FRANCISCO J
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 WP4NDC'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 WP4NDC.
- ROSA RIVERA, FRANCISCO JPRgranted 2013-08-06cancelled 2025-08-09