Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB4MAC callsign genealogy
Currently held by MCFATRIDGE, JAMES A
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 WB4MAC's current licensee, walking backwards.
- MCFATRIDGE, JAMES AFLgranted 2026-08-08cancelled 2026-08-28
Successor callsigns
Callsigns held now by people who previously held WB4MAC.
No current licensee on record previously held this callsign.