Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7ISH callsign genealogy
Currently held by Chen, Clark
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 W7ISH's current licensee, walking backwards.
- Chen, ClarkWAgranted 2016-10-04cancelled 2016-10-25
Successor callsigns
Callsigns held now by people who previously held W7ISH.
No current licensee on record previously held this callsign.