Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1ITM callsign genealogy
Currently held by Perrin III, William G
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 W1ITM's current licensee, walking backwards.
- Perrin III, William GNHgranted 2017-02-10cancelled 2017-02-28
Successor callsigns
Callsigns held now by people who previously held W1ITM.
- Perrin III, William GNHgranted 2021-05-18