Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1MHG callsign genealogy
Currently held by Gregory, Mark H
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 W1MHG's current licensee, walking backwards.
- Gregory, Mark HMAgranted 2018-05-01cancelled 2021-10-19
Successor callsigns
Callsigns held now by people who previously held W1MHG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1MHG, oldest first.
- CROWELL, DONALD N MA2007-07-13 → cancelled 2018-10-18
- Gregory, Mark H MA2021-10-19 active