Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W2IZ callsign genealogy
Currently held by HACK, THEODORE T
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 W2IZ's current licensee, walking backwards.
- Klein, Charles RNYgranted 2016-05-16cancelled 2020-06-19
Successor callsigns
Callsigns held now by people who previously held W2IZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W2IZ, oldest first.
- HACK, THEODORE T NJ2009-10-20 → cancelled 2018-05-17
- Klein, Charles R NY2020-06-19 active