Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI4WB callsign genealogy
Currently held by RICAFRENTE JR, DOUGLAS 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 AI4WB's current licensee, walking backwards.
- RICAFRENTE JR, DOUGLAS MSCgranted 2005-12-22cancelled 2007-03-29
Successor callsigns
Callsigns held now by people who previously held AI4WB.
- RICAFRENTE JR, DOUGLAS MSCgranted 2018-12-27