Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5IWT callsign genealogy
Currently held by PIER, JIM
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 K5IWT's current licensee, walking backwards.
- PIER, JIMTXgranted 2020-05-07cancelled 2020-06-13
Successor callsigns
Callsigns held now by people who previously held K5IWT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5IWT, oldest first.
- KEYER, WILLIAM S VA2002-06-25 → cancelled 2014-06-26
- PIER, JIM TX2020-06-13 active