Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB1S callsign genealogy
Currently held by WATT, RICHARD A
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 KB1S's current licensee, walking backwards.
- WATT, RICHARD ACTgranted 2004-04-02cancelled 2006-06-02
Successor callsigns
Callsigns held now by people who previously held KB1S.
- D AMELIO, ROBERT AMAgranted 2002-10-22cancelled 2014-10-23
All historical holders
Every license row we've seen with the callsign KB1S, oldest first.
- D AMELIO, ROBERT A MA2002-09-17 → cancelled 2002-10-22
- WATT, RICHARD A CT2016-06-17 active