KP4DI

KP4DI is restricted to amateurs with a USPS address in Puerto Rico

KP4DI is restricted to Technician class operators or higher.

KP4DI is e - expired and is available.

Scroll down to the applications that requested this callsign.
An Entity Name opens everything filed under that licensee’s FCC Registration Number.
A Grant Date opens all processing on that day; an Effective Date opens the license record.

Column headings link to an explanation of the column.
A bold Applicant Type marks a vanity callsign assignment.
Active licenses are listed first, then the rest by Effective Date, newest first.

Entity Name	Applicant Type	Licensee Class	Region / State	License Status	Grant Date	Effective Date	Cancel Date	Expire Date
SANTIAGO CABRERA, DIOMEDES	I - Individual	E - Amateur Extra	12 / PR	E - Expired	2014-03-11	2014-03-11	2026-03-12	2024-03-11

KP4DI is restricted to amateurs with a USPS address in Puerto Rico

KP4DI is restricted to Technician class operators or higher.

KP4DI is e - expired and is available.

An Applicant callsign opens that callsign’s history; an Entity Name opens the applicant’s history.
A ULS File Number opens the application detail; a Receipt Date opens that day’s applications.

Two dates or purposes in one row mean the application was amended or withdrawn: the latest change is on top, the original underneath.
“Granted” means the application was granted, not necessarily with this callsign.
Receipt dates more than a month old have a gray background.

Receipt Date	Applicant Callsign	Region / State	Entity Name	ULS File Number	Application Purpose	Payment Date	Last Action Date	Application Status
Mon 2026-06-01	WP4QZH	12 / PR	Rivera, Victor J	0012062081 I - Online	MD - Modification	2026-06-03	2026-06-19	G - Granted
Wed 2014-02-19	WP4OTA	12 / PR	SANTIAGO CABRERA, DIOMEDES	0006163488 I - Online	MD - Modification	2014-02-19	2014-03-11	G - Granted
Thu 2012-04-05	WP4OND	12 / PR	Fernandez Campos, Mauricio	0005152406 I - Online	MD - Modification	2012-04-05	2012-04-24	G - Granted
Mon 2002-05-13	KP4DOT	12 / PR	Cubero Caban Sr., Luis A	0000884652 I - Online	MD - Modification	2002-05-14	2002-05-31	G - Granted
Thu 2001-11-08	WP3LV	12 / PR	Rios-Rivera, Hector L	0000653999 I - Online	MD - Modification	2001-11-09	2002-03-07	G - Granted