uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-12

WM1A callsign genealogy

Currently held by Glenn, John 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 WM1A's current licensee, walking backwards.

  1. W0WYOcancelled· E
    Glenn, John WNEgranted 2016-03-18cancelled 2016-04-12
  2. WY0JONcancelled· E
    Glenn, John WNEgranted 2013-02-22cancelled 2016-03-18
  3. KD0TXCcancelled· G
    Glenn, John WNEgranted 2012-12-07cancelled 2013-02-22

Successor callsigns

Callsigns held now by people who previously held WM1A.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign WM1A, oldest first.

  • WILSON, CAROLYN M SD
    2003-12-23 → cancelled 2016-03-23
  • Glenn, John W NE
    2026-03-11 active
← Back to WM1A License history →