Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB1TS callsign genealogy
Currently held by HART, JOHN D
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 KB1TS's current licensee, walking backwards.
- Carland, Michael GMNgranted 2009-10-28cancelled 2009-11-17
Successor callsigns
Callsigns held now by people who previously held KB1TS.
- HART, JOHN DNYgranted 2002-12-10cancelled 2006-05-23
All historical holders
Every license row we've seen with the callsign KB1TS, oldest first.
- HART, JOHN D VT1997-07-07 → cancelled 2002-12-10
- Carland, Michael G MN2019-08-21 active