Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4ABL callsign genealogy
Currently held by Sinclair, Carl L
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 W4ABL's current licensee, walking backwards.
- Sinclair, Carl LNCgranted 2008-12-10cancelled 2010-12-24
Successor callsigns
Callsigns held now by people who previously held W4ABL.
No current licensee on record previously held this callsign.