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

KP4DI

Expired

SANTIAGO CABRERA, DIOMEDES

Location: ISABELA, PR
Class: Amateur Extra
Granted: 2014-03-11
Expires: 2024-03-11
Previous call: WP4OTA
FRN: 0018732388

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Vanity availability

547d

Available on 2028-03-10

KP4DI expired on 2024-03-11. Hold ends in 547 days.

Last held by SANTIAGO CABRERA, DIOMEDES (PR).

Confidence: High

Expired licenses get a 2-year FCC renewal grace period followed by the 2-year hold. The date shown accounts for both, so it's the firm release date per §97.19.

Callsign genealogy

Full chain →

Previously held by current licensee

WP4OTAcancelled· E
SANTIAGO CABRERA, DIOMEDESPRgranted 2013-05-31cancelled 2014-03-11

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 →