Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NP3M callsign genealogy
Currently held by Western Amateur Radio Club
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 NP3M's current licensee, walking backwards.
- WP4OBUcancelledWestern Amateur Radio ClubPRgranted 2009-09-01cancelled 2009-09-29
Successor callsigns
Callsigns held now by people who previously held NP3M.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NP3M, oldest first.
- DIAZ SCHROEDER, JUAN L PR1997-08-04 → cancelled 2009-08-05
- Western Amateur Radio Club PR2019-08-27 active