Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1DUD callsign genealogy
Currently held by HOULIHAN, PAUL J
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 W1DUD's current licensee, walking backwards.
- Houlihan, Paul JMAgranted 2002-10-15cancelled 2004-12-17
Successor callsigns
Callsigns held now by people who previously held W1DUD.
No current licensee on record previously held this callsign.