Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4MMR callsign genealogy
Currently held by Medina, Misael
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 WP4MMR's current licensee, walking backwards.
- MEDINA, MISAELCTgranted 2004-06-09cancelled 2008-02-09
Successor callsigns
Callsigns held now by people who previously held WP4MMR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WP4MMR, oldest first.
- IRIZARRY, ANGEL A PR1994-01-04 → cancelled 2006-01-05
- Medina, Misael PR2018-02-07 active