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

K4NNK callsign genealogy

Currently held by ALTMAN, GARY G

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 K4NNK's current licensee, walking backwards.

  1. K3SEactive· E
    Hanssen, James LMDgranted 2025-08-19
  2. AB3SZcancelled· E
    Hanssen, James LMDgranted 2011-05-18cancelled 2015-10-14
  3. KD5OSFcancelled· E
    Hanssen, James LMDgranted 2011-05-18cancelled 2013-08-23

Successor callsigns

Callsigns held now by people who previously held K4NNK.

  1. K3SAcancelled· E
    ALTMAN, GARY GMDgranted 2006-02-04cancelled 2006-03-04

All historical holders

Every license row we've seen with the callsign K4NNK, oldest first.

  • ALTMAN, GARY G MD
    1997-02-20 → cancelled 2006-02-04
  • ALTMAN, GARY G GA
    2023-06-27 active
← Back to K4NNK License history →