Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W0IH callsign genealogy
Currently held by FOERSTER, MICHAEL L
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 W0IH's current licensee, walking backwards.
- FOERSTER, MICHAEL LMNgranted 2000-07-18cancelled 2000-11-21
Successor callsigns
Callsigns held now by people who previously held W0IH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0IH, oldest first.
- WEIHE, RAYMOND H MN1988-10-25 → cancelled 2000-10-26
- FOERSTER, MICHAEL L MN2020-08-27 active