Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA1MKB callsign genealogy
Currently held by GAUDAITIS, WILLIAM J
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 KA1MKB's current licensee, walking backwards.
- N1DYPcancelledcancelled 1999-01-13
Successor callsigns
Callsigns held now by people who previously held KA1MKB.
No current licensee on record previously held this callsign.