WP4CS

WP4CS is restricted to amateurs with a USPS address in Puerto Rico

WP4CS is restricted to Technician class operators or higher.

WP4CS 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
CABAN-MARIN, ARNALDO	I - Individual	G - General	12 / PR	C - Canceled	2014-06-21	2014-06-21	2017-12-05	2024-07-02

WP4CS is restricted to amateurs with a USPS address in Puerto Rico

WP4CS is restricted to Technician class operators or higher.

WP4CS 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Two dates or purposes in one row mean the application was amended or withdrawn: the latest change is on top, the original underneath.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 2021-03-05	KO4ICJ	4 / FL	NEGREIRA JR, SERGIO P	0009441690 I - Online	MD - Modification	(none)	2021-03-23	D - Dismissed
Thu 2018-04-19	AB4JP	4 / TN	Pate Jr, Joseph H	0008181349 I - Online	MD - Modification	(none)	2018-05-08	G - Granted
Fri 2003-07-25	WP3XU	12 / PR	SERPA, CARLOS J	0001401997 M - Manual	MD - Modification	2003-08-01	2003-08-12	G - Granted