Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4MF callsign genealogy
Currently held by FONSECA, MELISSA
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 WP4MF's current licensee, walking backwards.
- FONSECA, MELISSAPRgranted 2014-03-25cancelled 2017-01-10
Successor callsigns
Callsigns held now by people who previously held WP4MF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WP4MF, oldest first.
- ECHEVARRIA, JOSE M PR1987-10-20 → cancelled 1999-10-21
- FONSECA, MELISSA PR2017-01-10 active