Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB1ABL callsign genealogy
Currently held by HOWARD, JOSEPH 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 KB1ABL's current licensee, walking backwards.
- Libros, Adam BCTgranted 2007-11-28cancelled 2007-12-18
Successor callsigns
Callsigns held now by people who previously held KB1ABL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB1ABL, oldest first.
- HOWARD, JOSEPH D NH1992-05-12 → cancelled 2004-05-13
- Libros, Adam B CT2017-11-15 active