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

WO4RCA callsign genealogy

Currently held by Tolentino, Ian D

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 WO4RCA's current licensee, walking backwards.

  1. K6RSQactive· T
    Cowan Sr, Scott ETXgranted 2015-09-18
  2. KK6WDQcancelled· T
    Cowan Sr, Scott ECAgranted 2015-08-31cancelled 2015-09-18

Successor callsigns

Callsigns held now by people who previously held WO4RCA.

  1. K6CWOactive· G
    Tolentino, Ian DCAgranted 2024-01-03
← Back to WO4RCA License history →