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

W4JA callsign genealogy

Currently held by ROBINSON, JAMES 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 W4JA's current licensee, walking backwards.

  1. NP3Factive· E
    ORTIZ, RAFAELPRgranted 2019-04-16
  2. KP3LRcancelled· E
    ORTIZ, RAFAELPRgranted 2017-08-29cancelled 2019-04-16
  3. NP3REactive
    RADIOCOMUNICACIONES PARA EMERGENCIAS EN ARECIBOPRgranted 2020-04-14
  4. WP4RMDcancelled
    RADIOCOMUNICACIONES PARA EMERGENCIAS EN ARECIBOPRgranted 2020-03-16cancelled 2020-04-14

Successor callsigns

Callsigns held now by people who previously held W4JA.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W4JA, oldest first.

  • ROBINSON, JAMES L FL
    1992-04-28 → cancelled 1997-03-09
  • WHALL, KAREN E FL
    2022-11-04 active
← Back to W4JA License history →