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

WP4KSI

Expired

TRINIDAD DIAZ, MANUEL E

Location: GUAYNABO, PR
Class: Novice
Granted: 1991-11-26
Expires: 2001-11-26

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Vanity availability

Unknown

Status unknown

No vanity-slot record on file for WP4KSI. Either it has never been issued, is currently held by an active license, or hasn't been re-computed since its last freeing event.

Vanity availability dates are computed from FCC §97.19's hold periods: 2 years from the cancellation date for cancelled or terminated licenses, 4 years from the expiration date for expired licenses (2-year renewal grace + 2-year hold).

Callsign genealogy

Full chain →

Previously held by current licensee

WP4RMQcancelled· T
TRINIDAD, MANUEL EPRgranted 2020-06-15cancelled 2020-07-03

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 →