Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WW4US callsign genealogy
Currently held by HARROLD, THOMAS (Goob) P
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 WW4US's current licensee, walking backwards.
- HARROLD, THOMAS PFLgranted 1996-09-06cancelled 2001-01-05
Successor callsigns
Callsigns held now by people who previously held WW4US.
No current licensee on record previously held this callsign.