Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB1T callsign genealogy
Currently held by HELMS, ROBERT E
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 WB1T's current licensee, walking backwards.
- Goldwasser, RobertMDgranted 2007-05-14cancelled 2007-08-04
Successor callsigns
Callsigns held now by people who previously held WB1T.
- HELMS, ROBERT ENCgranted 2025-05-24
All historical holders
Every license row we've seen with the callsign WB1T, oldest first.
- CIERI, FREDERICK J MT1993-03-16 → cancelled 2005-03-17
- HELMS, ROBERT E NC2005-04-05 → cancelled 2005-07-08
- Goldwasser, Robert MD2018-10-31 active