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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

W0PKJ callsign genealogy

Currently held by JACOBSON, PETER K

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 W0PKJ's current licensee, walking backwards.

  1. W3LJactive· E
    ROBERTS JR, JOHN SMDgranted 2021-04-03
  2. KD4UBMcancelled· E
    ROBERTS JR, JOHN SMDgranted 2013-11-13cancelled 2021-04-03

Successor callsigns

Callsigns held now by people who previously held W0PKJ.

  1. W3LJcancelled· E
    JACOBSON, PETER KMOgranted 2018-07-10cancelled 2019-03-15

All historical holders

Every license row we've seen with the callsign W0PKJ, oldest first.

  • JACOBSON, PETER K MO
    2016-07-23 → cancelled 2018-07-10
  • JACOBSON, PETER K CO
    2019-03-15 active
← Back to W0PKJ License history →