uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-14

KK4BOB callsign genealogy

Currently held by Flynn, John 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 KK4BOB's current licensee, walking backwards.

  1. KR4FTWcancelled· G
    CARDWELL Jr, LAVERNE LGAgranted 2025-08-05cancelled 2025-12-19

Successor callsigns

Callsigns held now by people who previously held KK4BOB.

  1. K4ARQactive· E
    Flynn, John LFLgranted 2023-10-26
  2. NY4Hactive· E
    Krauth, Robert JTNgranted 2018-12-04

All historical holders

Every license row we've seen with the callsign KK4BOB, oldest first.

  • Flynn, John L FL
    2011-04-13 → cancelled 2014-01-07
  • Krauth, Robert J TN
    2016-11-04 → cancelled 2018-12-04
  • CARDWELL, LAVERNE L GA
    2025-12-19 active
← Back to KK4BOB License history →