<SEC-DOCUMENT>0001047469-20-002848-index.html : 20200506
<SEC-HEADER>0001047469-20-002848.hdr.sgml : 20200506
<ACCEPTANCE-DATETIME>20200506161812
ACCESSION NUMBER:		0001047469-20-002848
CONFORMED SUBMISSION TYPE:	424B7
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20200506
DATE AS OF CHANGE:		20200506

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CoreSite Realty Corp
		CENTRAL INDEX KEY:			0001490892
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		424B7
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-177052
		FILM NUMBER:		20852853

	BUSINESS ADDRESS:	
		STREET 1:		1001 17TH STREET
		STREET 2:		SUITE 500
		CITY:			DENVER
		STATE:			CO
		ZIP:			80202
		BUSINESS PHONE:		(866) 777-2673

	MAIL ADDRESS:	
		STREET 1:		1001 17TH STREET
		STREET 2:		SUITE 500
		CITY:			DENVER
		STATE:			CO
		ZIP:			80202
</SEC-HEADER>
<DOCUMENT>
<TYPE>424B7
<SEQUENCE>1
<FILENAME>a2241559z424b7.htm
<DESCRIPTION>424B7
<TEXT>
Document 1 - file: a2241559z424b7.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g921051.jpg
<DESCRIPTION>G921051.JPG
<TEXT>
Document 2 - file: g921051.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g739005.jpg
<DESCRIPTION>G739005.JPG
<TEXT>
Document 3 - file: g739005.jpg

</DOCUMENT>
</SEC-DOCUMENT>