KP4AM

KP4AM is restricted to amateurs with a USPS address in Puerto Rico

KP4AM is restricted to Technician class operators or higher.

KP4AM 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
CARIBBEAN AMATEUR RADIO ASSOCIATION	B - Amateur Club		12 / PR	E - Expired	2013-01-30	2013-01-30	2025-03-22	2023-03-21
NOVOA, DAVID	I - Individual	E - Amateur Extra	4 / FL	C - Canceled	1999-06-30	1999-06-30	2001-01-06	2009-06-30

KP4AM is restricted to amateurs with a USPS address in Puerto Rico

KP4AM is restricted to Technician class operators or higher.

KP4AM 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Two dates or purposes in one row mean the application was amended or withdrawn: the latest change is on top, the original underneath.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 2026-06-08	WP4QHT	12 / PR	Schindler, Karl A	0012068468 I - Online	AM - Amendment	2026-06-04	2026-06-26	G - Granted
Fri 2025-11-28	WP4TMF	12 / PR	Santiago-Vargas, Alex D	0011803169 I - Online	MD - Modification	2025-12-01	2025-12-16	D - Dismissed
Wed 2014-03-26	KP4XN	12 / PR	VAZQUEZ, LENNY	0006213379 I - Online	MD - Modification	2014-03-26	2014-04-15	G - Granted
Mon 2012-05-07	WP4OKF	12 / PR	Mendez-Alvarado, Felix A	0005197248 I - Online	MD - Modification	2012-05-07	2012-05-25	G - Granted
Mon 2003-03-03	WP4NPA	12 / PR	CARIBBEAN AMATEUR RADIO ASSOCIATION	0001218511 I - Online	MD - Modification	2003-03-04	2003-03-21	G - Granted
Mon 2002-04-29	WP4LQU	12 / PR	RODRIGUEZ HERNANDEZ, ISRAEL D	0000872772 M - Manual	MD - Modification	2002-05-03	2002-05-17	D - Dismissed