Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AF1SH callsign genealogy
Currently held by North Coast Vacuum Tube Association
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 AF1SH's current licensee, walking backwards.
- KD8GVHcancelledNorth Coast Vacuum Tube AssociationOHgranted 2007-08-13cancelled 2007-10-06
Successor callsigns
Callsigns held now by people who previously held AF1SH.
No current licensee on record previously held this callsign.