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

WP4KOS

Cancelled

FIGUEROA, NELSON R

Location: TRUJILLO ALTO, PR
Class: Technician Plus
Granted: 1992-03-31
Expires: 2002-03-31
Previous call: WP4JCL
FRN: 0001845270

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Vanity availability

Available

Available now

WP4KOS cleared its 2-year hold on 2001-10-25. Eligible for vanity application.

Last held by FIGUEROA, NELSON R (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 →

Previously held by current licensee

WP4JCL
no FCC ULS record on file

Prior holders later became

KP4BPRactive· G
FIGUEROA, NELSON RMAgranted 2020-01-07

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 →