Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NP4WB callsign genealogy
Currently held by Osorio-Rodriguez, Marcos 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 NP4WB's current licensee, walking backwards.
- Osorio-Rodriguez, Marcos APRgranted 2009-04-30cancelled 2009-07-24
Successor callsigns
Callsigns held now by people who previously held NP4WB.
No current licensee on record previously held this callsign.