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

WP4HL callsign genealogy

Currently held by COLON MARTINEZ, HECTOR 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 WP4HL's current licensee, walking backwards.

  1. WP4HLCcancelled· T
    COLON MARTINEZ, HECTOR LPRgranted 2018-08-18cancelled 2018-09-07
  2. WP4QHAcancelled· T
    COLON MARTINEZ, HECTOR LPRgranted 2018-07-16cancelled 2018-08-18

Successor callsigns

Callsigns held now by people who previously held WP4HL.

  1. NP3HGcancelled· E
    GUTIERREZ PABON, HECTOR LFLgranted 2016-04-22cancelled 2018-09-05

All historical holders

Every license row we've seen with the callsign WP4HL, oldest first.

  • GUTIERREZ PABON, HECTOR L PR
    2015-10-14 → cancelled 2016-04-22
  • COLON MARTINEZ, HECTOR L PR
    2018-09-07 active
← Back to WP4HL License history →