Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC2NBB callsign genealogy
Currently held by Knapp III, Harold S
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 KC2NBB'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 KC2NBB.
- Knapp III, Harold SNJgranted 2025-07-12