Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W5ISR callsign genealogy
Currently held by Palmer, Gregory E
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 W5ISR's current licensee, walking backwards.
- Palmer, Gregory ETXgranted 2015-11-18cancelled 2020-03-10
Successor callsigns
Callsigns held now by people who previously held W5ISR.
No current licensee on record previously held this callsign.