Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NP4MM callsign genealogy
Currently held by RODRIGUEZ RODRIGUEZ, FUNDADOR
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 NP4MM's current licensee, walking backwards.
- WP4PGWcancelledRadio Emergency GroupPRgranted 2014-11-07cancelled 2016-03-05
Successor callsigns
Callsigns held now by people who previously held NP4MM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NP4MM, oldest first.
- RODRIGUEZ RODRIGUEZ, FUNDADOR PR1996-03-11 → cancelled 2008-03-12
- Radio Emergency Group PR2016-03-05 active