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

WP4DTR callsign genealogy

Currently held by TORRES, DAVID

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 WP4DTR's current licensee, walking backwards.

  1. WP4SKTcancelled· G
    TORRES, DAVIDPRgranted 2022-05-27cancelled 2022-10-04
  2. KP4DTRcancelled· G
    TORRES, DAVIDPRgranted 2022-05-27cancelled 2022-07-06
  3. WP4SHLcancelled· G
    TORRES, DAVIDPRgranted 2022-05-03cancelled 2022-05-27
  4. WP4KRXcancelled· G
    TORRES, DAVIDPRgranted 2012-05-22cancelled 2022-05-03

Successor callsigns

Callsigns held now by people who previously held WP4DTR.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign WP4DTR, oldest first.

  • RODRIGUEZ, JOSEFINO PR
    1994-09-15 → cancelled 2006-09-16
  • TORRES, DAVID PR
    2022-10-04 active
← Back to WP4DTR License history →