Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB1BAY callsign genealogy
Currently held by O HARA, KRISTIN K
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 KB1BAY's current licensee, walking backwards.
- BASS, JAMES BTXgranted 2006-11-14cancelled 2016-04-05
Successor callsigns
Callsigns held now by people who previously held KB1BAY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB1BAY, oldest first.
- O HARA, KRISTIN K MA1993-07-06 → cancelled 2005-07-07
- BASS, JAMES B TX2026-03-19 active