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

KP4LST

Cancelled

SANTOS TORRES, LUIS F

Location: CAYEY, PR
Class: General
Granted: 2016-10-18
Expires: 2026-10-18
Previous call: KM4YBN
FRN: 0025918384

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Vanity availability

Available

Available now

KP4LST cleared its 2-year hold on 2021-07-29. Eligible for vanity application.

Last held by SANTOS TORRES, LUIS F (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

KM4YBNcancelled· T
SANTOS TORRES, LUIS FFLgranted 2016-09-30cancelled 2016-10-18

Prior holders later became

NP3RKactive· G
SANTOS TORRES, LUIS FPRgranted 2019-07-30

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 →