Confidence: Medium · Source: FCC ULS · As of 2026-09-10

WP4OYO

Cancelled

Torres-Castro, Rafael A

Location: Lajas, PR
Class: Technician
Granted: 2014-04-07
Expires: 2024-04-07
FRN: 0023519580

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Vanity availability

Available

Available now

WP4OYO cleared its 2-year hold on 2020-06-04. Eligible for vanity application.

Last held by Torres-Castro, Rafael A (PR).

Confidence: High

Cancelled licenses begin the 2-year hold immediately, so this date is the firm release date per §97.19. Already past — fileable subject to FCC verification.

Callsign genealogy

Full chain →

Prior holders later became

KP4RTCactive· G
Torres-Castro, Rafael APRgranted 2018-06-05

License history

0 events

No recorded events.

More vanity slots coming available

From Puerto Rico

All →

WP4TLD 2026-09-10
K5DTC 2026-09-14
WP4LKC 2026-09-14
KP4ECD 2026-09-16
WP3TU 2026-09-16

Starting with WP4

All →

WP4TLD PR · 2026-09-10
WP4LKC PR · 2026-09-14
WP4MRN UT · 2026-09-17
WP4TKL PR · 2026-09-17
WP4KNF PR · 2026-09-18

Full history → Vanity availability → Callsign genealogy →