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Confidence: Medium · Source: FCC ULS · As of 2026-09-12

W0RMP callsign genealogy

Currently held by BIRNSTIHL, DALE L

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 W0RMP's current licensee, walking backwards.

  1. KD0RILcancelled· E
    ERNST, ROBERTCOgranted 2013-08-27cancelled 2018-07-28
  2. KC9FCDcancelled· G
    Ernst, RobertCOgranted 2003-11-24cancelled 2012-03-21

Successor callsigns

Callsigns held now by people who previously held W0RMP.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W0RMP, oldest first.

  • BIRNSTIHL, DALE L MN
    1997-11-19 → cancelled 2009-11-20
  • ERNST, ROBERT CO
    2018-07-28 active
← Back to W0RMP License history →