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

N3RDR callsign genealogy

Currently held by LOPEZ, JUAN

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 N3RDR's current licensee, walking backwards.

  1. KC3CCDcancelled· G
    VELAZQUEZ, CARLOS AMDgranted 2013-07-09cancelled 2019-02-01
  2. KC3AYDcancelled· G
    VELAZQUEZ, CARLOS AMDgranted 2013-07-09cancelled 2014-02-13

Successor callsigns

Callsigns held now by people who previously held N3RDR.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign N3RDR, oldest first.

  • LOPEZ, JUAN PA
    2003-09-23 → cancelled 2015-12-22
  • VELAZQUEZ, CARLOS A MD
    2019-02-01 active
← Back to N3RDR License history →