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

AB7SP callsign genealogy

Currently held by SUMMERS, DAVID J

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 AB7SP's current licensee, walking backwards.

  1. AA0UQcancelled· E
    PHILLIPS, STEVEN DWAgranted 2014-01-29cancelled 2021-02-09
  2. KG0LB
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held AB7SP.

  1. N7NHactive· E
    PHILLIPS, STEVEN DUTgranted 2021-06-04
  2. AD6JGcancelled· E
    Summers, David JNVgranted 2004-04-26cancelled 2004-07-16

All historical holders

Every license row we've seen with the callsign AB7SP, oldest first.

  • SUMMERS, DAVID J MT
    1996-09-30 → cancelled 1999-09-30
  • PHILLIPS, STEVEN D WA
    2021-02-09 → cancelled 2021-06-04
← Back to AB7SP License history →