Confidence: Medium · Source: FCC ULS · As of 2026-11-02
K7TEB callsign genealogy
Currently held by COLD, SHERMAN J
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 K7TEB's current licensee, walking backwards.
- Birch, Todd EIDgranted 2026-08-20cancelled 2026-09-29
Successor callsigns
Callsigns held now by people who previously held K7TEB.
- COLD, SHERMAN JUTgranted 2019-11-08cancelled 2025-01-22
All historical holders
Every license row we've seen with the callsign K7TEB, oldest first.
- COLD, SHERMAN J NC2018-05-15 → cancelled 2019-11-08
- Birch, Todd E ID2026-09-29 active