Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB1ISA callsign genealogy
Currently held by Ponder, Benjamin M
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 KB1ISA's current licensee, walking backwards.
- HENNING, JAMES HGAgranted 2023-11-01cancelled 2023-11-25
Successor callsigns
Callsigns held now by people who previously held KB1ISA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB1ISA, oldest first.
- Ponder, Benjamin M MA2002-08-30 → cancelled 2014-09-03
- HENNING, JAMES H GA2023-11-25 active