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

NB5U callsign genealogy

Currently held by NIEMAN, ORDRIA B

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 NB5U's current licensee, walking backwards.

  1. KA7Yactive· E
    GRINDLE, MICHAEL FNMgranted 2021-05-28
  2. K7ESCcancelled· E
    GRINDLE, MICHAEL FIDgranted 2020-10-06cancelled 2021-05-28
  3. KJ7QPKcancelled· T
    Grindle, Michael FIDgranted 2020-09-15cancelled 2020-10-06

Successor callsigns

Callsigns held now by people who previously held NB5U.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign NB5U, oldest first.

  • NIEMAN, ORDRIA B TX
    2007-01-17 → cancelled 2019-04-17
  • MILLER Jr, RALPH P OK
    2019-05-07 active
← Back to NB5U License history →