Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA4AHB callsign genealogy
Currently held by Blair, Alan H
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 KA4AHB's current licensee, walking backwards.
- Blair, Alan HFLgranted 2022-06-22cancelled 2022-11-01
Successor callsigns
Callsigns held now by people who previously held KA4AHB.
- MATTHEWS, JOHN ENCgranted 2010-09-21cancelled 2022-10-25