Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB8SN callsign genealogy
Currently held by Callahan, Chad M
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 AB8SN's current licensee, walking backwards.
- Callahan, Chad MWVgranted 1999-05-03cancelled 2004-03-12
Successor callsigns
Callsigns held now by people who previously held AB8SN.
No current licensee on record previously held this callsign.