Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NP4TX callsign genealogy
Currently held by Ortiz-Mateo, Angel 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 NP4TX's current licensee, walking backwards.
- Ortiz-Mateo, Angel APRgranted 1994-11-23cancelled 2004-04-23
Successor callsigns
Callsigns held now by people who previously held NP4TX.
No current licensee on record previously held this callsign.