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

KP4NCB

Cancelled

Colon-Barrios, Nestor

Location: Jayuya, PR
Class: Amateur Extra
Granted: 2018-06-02
Expires: 2028-06-02
Previous call: WP4QBO
FRN: 0027396878

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Vanity availability

Available

Available now

KP4NCB cleared its 2-year hold on 2023-07-02. Eligible for vanity application.

Last held by Colon-Barrios, Nestor (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

WP4QBOcancelled· T
Colon-Barrios, NestorPRgranted 2018-05-15cancelled 2018-06-02

Prior holders later became

KP4NCactive· E
Colon-Barrios, NestorPRgranted 2021-07-02

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 KP4

All →

KP4ECD PR · 2026-09-16
KP4ED PR · 2026-10-05
KP4CH IN · 2026-10-11
KP4DEU PR · 2026-10-12
KP4GN PR · 2026-11-02

Full history → Vanity availability → Callsign genealogy →