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Confidence: Medium · Source: FCC ULS · As of 2026-09-11

NP4JS callsign genealogy

Currently held by Santana, Jorge L

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 NP4JS's current licensee, walking backwards.

  1. WP4SRJcancelled· T
    SANTANA GONZALEZ, JORGE LPRgranted 2022-11-09cancelled 2022-11-29

Successor callsigns

Callsigns held now by people who previously held NP4JS.

  1. NP4Bactive· E
    SANTANA, JORGE LPRgranted 2019-12-27
  2. W9JScancelled· E
    Santana, Jorge LWIgranted 2017-02-14cancelled 2017-02-15

All historical holders

Every license row we've seen with the callsign NP4JS, oldest first.

  • REYES SR, GILFREDO PR
    1988-09-13 → cancelled 2000-09-14
  • Santana, Jorge L WI
    2012-08-21 → cancelled 2017-02-14
  • Santana, Jorge L PR
    2018-11-02 → cancelled 2019-12-27
  • SANTANA GONZALEZ, JORGE L PR
    2022-11-29 active
← Back to NP4JS License history →