Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1JAM callsign genealogy
Currently held by MERCURIO, JOSEPH 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 W1JAM's current licensee, walking backwards.
- MERCURIO JR, JOSEPH AFLgranted 1997-01-22cancelled 2000-08-04
Successor callsigns
Callsigns held now by people who previously held W1JAM.
No current licensee on record previously held this callsign.