uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-12

ND0A callsign genealogy

Currently held by MARINER, FRANK 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 ND0A's current licensee, walking backwards.

  1. AD0AIcancelled· E
    Fowler, Robert CCOgranted 2011-06-23cancelled 2012-07-28
  2. KD0OZXcancelled· E
    Fowler, Robert CCOgranted 2011-06-23cancelled 2012-05-18

Successor callsigns

Callsigns held now by people who previously held ND0A.

  1. NV0Lactive· E
    Williams, Lawrence HTNgranted 2020-05-21

All historical holders

Every license row we've seen with the callsign ND0A, oldest first.

  • MARINER, FRANK G MN
    1997-06-18 → cancelled 2009-06-19
  • Williams, Lawrence H TN
    2009-07-17 → cancelled 2010-07-09
  • Fowler, Robert C FL
    2022-08-19 active
← Back to ND0A License history →