Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB1BN callsign genealogy
Currently held by Nienhouse, Robert C
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 KB1BN's current licensee, walking backwards.
- Nienhouse, Robert CNHgranted 2010-12-10cancelled 2012-11-20
Successor callsigns
Callsigns held now by people who previously held KB1BN.
- ZACH, RICHARD JNHgranted 2017-09-12cancelled 2023-11-17
All historical holders
Every license row we've seen with the callsign KB1BN, oldest first.
- Nienhouse, Robert C NH2023-12-06 active
- —— → cancelled 1997-09-17