Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA1RAT callsign genealogy
Currently held by ROBERTS II, HAROLD E
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 WA1RAT's current licensee, walking backwards.
- Roberts II, Harold ENVgranted 2007-03-28cancelled 2007-05-11
Successor callsigns
Callsigns held now by people who previously held WA1RAT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WA1RAT, oldest first.
- BIANCUCCI, LOUIS G RI1994-04-19 → cancelled 2006-04-20
- ROBERTS II, HAROLD E MO2017-03-15 active