WP4XX

WP4XX is restricted to amateurs with a USPS address in Puerto Rico

WP4XX is restricted to Technician class operators or higher.

WP4XX is c - canceled 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
JIMENEZ, ROLANDO V	I - Individual	E - Amateur Extra	12 / PR	C - Canceled	2013-08-30	2015-03-09	2015-03-09	2023-08-30
VELEZ MENDEZ, ALFREDO	I - Individual	T - Technician	12 / PR	C - Canceled	2006-10-17	2006-11-21	2010-03-23	2016-10-17
FERNANDEZ, GUSTAVO	I - Individual	P - Technician Plus	12 / PR	E - Expired	1990-06-05	1990-06-05	2002-06-06	2000-06-05

WP4XX is restricted to amateurs with a USPS address in Puerto Rico

WP4XX is restricted to Technician class operators or higher.

WP4XX is c - canceled 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Two dates or purposes in one row mean the application was amended or withdrawn: the latest change is on top, the original underneath.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
Fri 2024-11-22	N4LKZ	7 / WA	Mathis, Jessica N	0011340946 I - Online	MD - Modification	2024-11-22	2024-12-10	G - Granted
Mon 2020-12-28	WP4P	4 / FL	OLMO, MIGUEL A	0009345300 I - Online	MD - Modification	(none)	2021-01-15	D - Dismissed
Mon 2013-08-12	NP3UN	12 / PR	JIMENEZ, ROLANDO V	0005890956 I - Online	MD - Modification	2013-08-12	2013-08-30	G - Granted
Wed 2006-09-27	NP3KI	12 / PR	VELEZ MENDEZ, ALFREDO	0002769136 M - Manual	MD - Modification	2006-09-29	2006-10-17	G - Granted