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

KP4CRJ callsign genealogy

Currently held by RESTO JIMENEZ, CHRISTOPHER 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 KP4CRJ's current licensee, walking backwards.

  1. WP4RVQcancelled· T
    RESTO JIMENEZ, CHRISTOPHER JPRgranted 2021-06-28cancelled 2021-08-23

Successor callsigns

Callsigns held now by people who previously held KP4CRJ.

  1. WP4RCactive· E
    Resto Jimenez, CHRISTOPHER JPRgranted 2022-08-26

All historical holders

Every license row we've seen with the callsign KP4CRJ, oldest first.

  • RAMOS FLORES, RAMON PR
    2006-06-21 → cancelled 2018-09-07
  • RESTO JIMENEZ, CHRISTOPHER J PR
    2021-08-23 → cancelled 2022-08-26
← Back to KP4CRJ License history →