Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W8HMK callsign genealogy
Currently held by WELCH, JAMES T
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 W8HMK's current licensee, walking backwards.
- Kolenbrander, Harold MOHgranted 2004-07-28cancelled 2008-11-14
Successor callsigns
Callsigns held now by people who previously held W8HMK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W8HMK, oldest first.
- WELCH, JAMES T MI1987-11-10 → cancelled 1999-11-11
- Kolenbrander, Harold M RI2018-08-29 active