Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA1WIW callsign genealogy
Currently held by SEFRANEK, CHRISTINA 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 KA1WIW's current licensee, walking backwards.
- Sefranek, ChristinaMAgranted 2008-09-03cancelled 2008-09-23
Successor callsigns
Callsigns held now by people who previously held KA1WIW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA1WIW, oldest first.
- SEFRANEK, CHRISTINA H MA1998-05-22 → cancelled 2002-09-05
- Sefranek, Christina MA2018-07-17 active