Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WB1DZT callsign genealogy
Currently held by GEIS, THOMAS A
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 WB1DZT's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held WB1DZT.
- GEIS, THOMAS ANHgranted 2021-01-06