Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W8NDU callsign genealogy
Currently held by Sheanshang, Mark 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 W8NDU's current licensee, walking backwards.
- Sheanshang, Mark JUTgranted 1998-12-01cancelled 2004-02-27
Successor callsigns
Callsigns held now by people who previously held W8NDU.
No current licensee on record previously held this callsign.