Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0IM callsign genealogy
Currently held by Shaw, Robert C
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 W0IM's current licensee, walking backwards.
- Huff, David JIAgranted 2009-05-13cancelled 2009-06-26
Successor callsigns
Callsigns held now by people who previously held W0IM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0IM, oldest first.
- Shaw, Robert C MN1999-07-28 → cancelled 2009-06-09
- Huff, David J IA2019-05-23 active