Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NP4ER callsign genealogy
Currently held by ANTONGIORGI, PEDRO
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 NP4ER's current licensee, walking backwards.
- RIVERA COLON, EDWIN APRgranted 2003-07-29cancelled 2006-10-07
Successor callsigns
Callsigns held now by people who previously held NP4ER.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NP4ER, oldest first.
- ANTONGIORGI, PEDRO PR1993-08-17 → cancelled 2005-08-18
- RIVERA COLON, EDWIN A PR2018-06-30 active