Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W7SIU callsign genealogy
Currently held by Cartlidge, Marcus
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 W7SIU's current licensee, walking backwards.
- Cartlidge, Marcus LILgranted 2019-11-04cancelled 2019-11-23
Successor callsigns
Callsigns held now by people who previously held W7SIU.
No current licensee on record previously held this callsign.