uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-14

W4GM callsign genealogy

Currently held by MARTIN, GLENN A

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 W4GM's current licensee, walking backwards.

  1. W4OCOcancelled· E
    HYMAN, MikeVAgranted 2017-12-14cancelled 2020-04-21
  2. NC4MHactive· E
    HATCHER, MICHAEL RNCgranted 2024-10-04
  3. KI4MRHcancelled· E
    Hinsley, Randall HTNgranted 2019-08-06cancelled 2021-05-07
  4. KN4VTCcancelled· T
    Hinsley, Randall HTNgranted 2019-07-18cancelled 2019-08-06

Successor callsigns

Callsigns held now by people who previously held W4GM.

  1. W4CHactive· E
    HASTY, CLINTONNCgranted 2019-05-08

All historical holders

Every license row we've seen with the callsign W4GM, oldest first.

  • MARTIN, GLENN A GA
    2011-04-21 → cancelled 2018-04-01
  • HYMAN, Mike VA
    2020-04-21 active
  • —
    — → cancelled 1999-06-14
← Back to W4GM License history →