Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4EDB callsign genealogy
Currently held by Portela 444, Carlos M
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 W4EDB's current licensee, walking backwards.
- Portela, Carlos MFLgranted 1999-12-02cancelled 2000-06-20
Successor callsigns
Callsigns held now by people who previously held W4EDB.
No current licensee on record previously held this callsign.