Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AI7HG callsign genealogy
Currently held by Grogan, Michael W
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 AI7HG's current licensee, walking backwards.
- Grogan, Michael WIDgranted 2020-08-03cancelled 2021-05-04
Successor callsigns
Callsigns held now by people who previously held AI7HG.
- Grogan, Michael WIDgranted 2021-06-25