Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1ABL callsign genealogy
Currently held by Thompson, David G
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 K1ABL's current licensee, walking backwards.
- Thompson, David GMAgranted 1998-01-21cancelled 2002-12-03
Successor callsigns
Callsigns held now by people who previously held K1ABL.
No current licensee on record previously held this callsign.