Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA7THY callsign genealogy
Currently held by KARSTEN, KATHERINE K
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 KA7THY's current licensee, walking backwards.
- KARSTEN, KATHERINE KAZgranted 1994-09-22cancelled 1999-12-07
Successor callsigns
Callsigns held now by people who previously held KA7THY.
No current licensee on record previously held this callsign.