Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4SFG callsign genealogy
Currently held by CARRERO MERCED, CARMEN I
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 WP4SFG's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held WP4SFG.
- CARRERO MERCED, CARMEN IPRgranted 2022-03-25