Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WP4OPT callsign genealogy
Currently held by GONZALEZ CRESPO, MANUEL
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 WP4OPT's current licensee, walking backwards.
- GONZALEZ CRESPO, MANUELPRgranted 2012-11-01cancelled 2012-11-02
Successor callsigns
Callsigns held now by people who previously held WP4OPT.
No current licensee on record previously held this callsign.