Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NP3SD callsign genealogy
Currently held by ROLDAN SEISE, JUAN 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 NP3SD'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 NP3SD.
- ROLDAN SEISE, JUAN APRgranted 2021-04-23