Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1ZZA callsign genealogy
Currently held by MC GILLICUDDY, TERRENCE 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 W1ZZA's current licensee, walking backwards.
- MC GILLICUDDY Dr., TERRENCE PMAgranted 2004-05-11cancelled 2004-07-27
Successor callsigns
Callsigns held now by people who previously held W1ZZA.
No current licensee on record previously held this callsign.