<SEC-DOCUMENT>0000844779-17-000415-index.html : 20171030
<SEC-HEADER>0000844779-17-000415.hdr.sgml : 20171030
<ACCEPTANCE-DATETIME>20171030120255
ACCESSION NUMBER:		0000844779-17-000415
CONFORMED SUBMISSION TYPE:	NSAR-B
PUBLIC DOCUMENT COUNT:		20
CONFORMED PERIOD OF REPORT:	20170831
FILED AS OF DATE:		20171030
DATE AS OF CHANGE:		20171030
EFFECTIVENESS DATE:		20171030

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BLACKROCK CORE BOND TRUST
		CENTRAL INDEX KEY:			0001160864
		IRS NUMBER:				522346891
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		NSAR-B
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-10543
		FILM NUMBER:		171161301

	BUSINESS ADDRESS:	
		STREET 1:		100 BELLEVUE PARKWAY
		STREET 2:		MUTUAL FUND DEPARTMENT
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19809
		BUSINESS PHONE:		888-825-2257

	MAIL ADDRESS:	
		STREET 1:		100 BELLEVUE PARKWAY
		STREET 2:		MUTUAL FUND DEPARTMENT
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19809
</SEC-HEADER>
<DOCUMENT>
<TYPE>NSAR-B
<SEQUENCE>1
<FILENAME>d2i2answer.fil
<TEXT>
Document 1 - file: d2i2answer.fil

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77B ACCT LTTR
<SEQUENCE>2
<FILENAME>77bTax3.txt
<TEXT>
Document 2 - file: 77bTax3.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77O RULE 10F-3
<SEQUENCE>3
<FILENAME>77O6.txt
<TEXT>
Document 3 - file: 77O6.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77O RULE 10F-3
<SEQUENCE>4
<FILENAME>77O8.txt
<TEXT>
Document 4 - file: 77O8.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77O RULE 10F-3
<SEQUENCE>5
<FILENAME>77O9.txt
<TEXT>
Document 5 - file: 77O9.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77O RULE 10F-3
<SEQUENCE>6
<FILENAME>77O12.txt
<TEXT>
Document 6 - file: 77O12.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77O RULE 10F-3
<SEQUENCE>7
<FILENAME>77O13.txt
<TEXT>
Document 7 - file: 77O13.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77O RULE 10F-3
<SEQUENCE>8
<FILENAME>77O15.txt
<TEXT>
Document 8 - file: 77O15.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77O RULE 10F-3
<SEQUENCE>9
<FILENAME>77O16.txt
<TEXT>
Document 9 - file: 77O16.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77O RULE 10F-3
<SEQUENCE>10
<FILENAME>77O17.txt
<TEXT>
Document 10 - file: 77O17.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77O RULE 10F-3
<SEQUENCE>11
<FILENAME>77O19.txt
<TEXT>
Document 11 - file: 77O19.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77O RULE 10F-3
<SEQUENCE>12
<FILENAME>77O20.txt
<TEXT>
Document 12 - file: 77O20.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77O RULE 10F-3
<SEQUENCE>13
<FILENAME>77O25.txt
<TEXT>
Document 13 - file: 77O25.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77O RULE 10F-3
<SEQUENCE>14
<FILENAME>77O28.txt
<TEXT>
Document 14 - file: 77O28.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77O RULE 10F-3
<SEQUENCE>15
<FILENAME>77O29.txt
<TEXT>
Document 15 - file: 77O29.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77O RULE 10F-3
<SEQUENCE>16
<FILENAME>77O30.txt
<TEXT>
Document 16 - file: 77O30.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77O RULE 10F-3
<SEQUENCE>17
<FILENAME>77O32.txt
<TEXT>
Document 17 - file: 77O32.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77O RULE 10F-3
<SEQUENCE>18
<FILENAME>77O36.txt
<TEXT>
Document 18 - file: 77O36.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77O RULE 10F-3
<SEQUENCE>19
<FILENAME>77O42.txt
<TEXT>
Document 19 - file: 77O42.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.77O RULE 10F-3
<SEQUENCE>20
<FILENAME>77O21.txt
<TEXT>
Document 20 - file: 77O21.txt

</DOCUMENT>
</SEC-DOCUMENT>