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

K0BW callsign genealogy

Currently held by POTTORF, HAROLD F

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 K0BW's current licensee, walking backwards.

  1. WA5ZAYcancelled· E
    BABBITT JR, JACK FTNgranted 2011-06-28cancelled 2018-10-30
  2. KC7CSUcancelled· T
    BABBITT JR, JACK FTNgranted 2004-03-23cancelled 2011-06-28

Successor callsigns

Callsigns held now by people who previously held K0BW.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign K0BW, oldest first.

  • POTTORF, HAROLD F KS
    2006-11-16 → cancelled 2016-10-11
  • BABBITT JR, JACK F TN
    2018-10-30 active