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

WD4MYM callsign genealogy

Currently held by CROCKRELL, JON C

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 WD4MYM's current licensee, walking backwards.

  1. WD0MYMcancelled· G
    CROCKRELL, JON CMOgranted 2019-08-06cancelled 2022-03-04
  2. KB0TVLcancelled· G
    CROCKRELL, JON CMOgranted 2005-10-04cancelled 2009-09-01

Successor callsigns

Callsigns held now by people who previously held WD4MYM.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign WD4MYM, oldest first.

  • CROCKRELL, JAMES W NC
    1991-09-10 → cancelled 2003-09-11
  • North Carolina 6 Meter Association NC
    2004-05-14 → cancelled 2016-05-17
  • CROCKRELL, JON C IL
    2022-03-04 active
← Back to WD4MYM License history →