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

N9MER callsign genealogy

Currently held by ROHR, WILLIAM 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 N9MER's current licensee, walking backwards.

  1. KC9BKWcancelled· T
    Rohr, Thomas EINgranted 2002-04-02cancelled 2004-01-03

Successor callsigns

Callsigns held now by people who previously held N9MER.

  1. W1IMSactive· E
    Rohr, Thomas EINgranted 2024-10-18

All historical holders

Every license row we've seen with the callsign N9MER, oldest first.

  • ROHR, WILLIAM J IN
    1991-08-06 → cancelled 2003-08-07
  • Rohr, Thomas E IN
    2004-01-03 → cancelled 2004-02-07
← Back to N9MER License history →