PAGE 1 000 A000000 04/30/2010 000 C000000 0001160990 000 D000000 N 000 E000000 NF 000 F000000 Y 000 G000000 N 000 H000000 N 000 I000000 6.1 000 J000000 A 001 A000000 PIMCO CORPORATE INCOME FUND 001 B000000 811-10555 001 C000000 2127393371 002 A000000 1345 AVENUE OF THE AMERICAS 002 B000000 NEW YORK 002 C000000 NY 002 D010000 10105 003 000000 N 004 000000 N 005 000000 N 006 000000 N 007 A000000 N 007 B000000 0 007 C010100 1 008 A000001 ALLIANZ GLOBAL INVESTORS FUND MANAGEMENT LLC 008 B000001 A 008 C000001 801-57798 008 D010001 NEW YORK 008 D020001 NY 008 D030001 10105 008 A000002 PACIFIC INVESTMENT MANAGEMENT COMPANY LLC 008 B000002 S 008 C000002 801-48187 008 D010002 NEWPORT BEACH 008 D020002 CA 008 D030002 92660 010 A000001 ALLIANZ GLOBAL INVESTORS FUND MANAGEMENT LLC 010 B000001 801-57798 010 C010001 NEW YORK 010 C020001 NY 010 C030001 10105 012 A000001 PNC GLOBAL INVESTMENT SERVICING 012 B000001 84-58023 012 C010001 PROVIDENCE 012 C020001 RI 012 C030001 02940 012 C040001 3027 013 A000001 PRICEWATERHOUSECOOPERS LLP 013 B010001 NEW YORK 013 B020001 NY 013 B030001 10017 014 A000001 ALLIANZ GLOBAL INVESTORS DISTRIBUTORS LLC PAGE 2 014 B000001 8-041811 014 A000002 ALLIANZ LIFE FINANCIAL SERVICES LLC 014 B000002 8-013630 014 A000003 QUESTAR CAPITAL CORPORATION 014 B000003 8-050174 015 A000001 STATE STREET BANK & TRUST CO. 015 B000001 C 015 C010001 KANSAS CITY 015 C020001 MO 015 C030001 64105 015 C040001 1307 015 E010001 X 015 A000002 CLEARSTREAM BANKING S.A. 015 B000002 S 015 C010002 LUXEMBOURG 015 D010002 LUXEMBOURG 015 E040002 X 018 000000 Y 019 A000000 Y 019 B000000 80 019 C000000 ALLIANZGLO 020 A000001 THE GOLDMAN SACHS GROUP, INC. 020 B000001 13-4019460 020 C000001 10 021 000000 10 022 A000001 STATE STREET BANK & TRUST CO. 022 B000001 04-2456637 022 C000001 331677 022 D000001 21507 022 A000002 BARCLAYS CAPITAL, INC. 022 B000002 06-1031656 022 C000002 311023 022 D000002 34932 022 A000003 JPMORGAN CHASE & CO. 022 B000003 13-3224016 022 C000003 166351 022 D000003 53289 022 A000004 CREDIT SUISSE GROUP 022 B000004 13-5659485 022 C000004 108055 022 D000004 13965 022 A000005 DEUTSCHE BANK AG 022 B000005 13-2944980 022 C000005 105809 022 D000005 14724 022 A000006 MORGAN STANLEY 022 B000006 36-3145972 022 C000006 66337 022 D000006 24692 022 A000007 BANK OF AMERICA CORP. 022 B000007 56-0906609 PAGE 3 022 C000007 73065 022 D000007 14188 022 A000008 THE GOLDMAN SACHS GROUP, INC. 022 B000008 13-4019460 022 C000008 66070 022 D000008 9048 022 A000009 CITIGROUP, INC. 022 B000009 52-1568099 022 C000009 14220 022 D000009 10836 022 A000010 PERSHING LLC 022 B000010 13-2741729 022 C000010 12954 022 D000010 8596 023 C000000 1316061 023 D000000 242734 024 000000 Y 025 A000001 JPMORGAN CHASE & CO. 025 B000001 13-3224016 025 C000001 D 025 D000001 50495 025 A000002 CITIGROUP, INC. 025 B000002 52-1568099 025 C000002 D 025 D000002 24496 025 A000003 THE GOLDMAN SACHS GROUP, INC. 025 B000003 13-4019460 025 C000003 D 025 D000003 21567 025 A000004 BANK OF AMERICA CORP. 025 B000004 56-0906609 025 C000004 D 025 D000004 20777 025 A000005 BARCLAYS CAPITAL, INC. 025 B000005 06-1031656 025 C000005 D 025 D000005 17013 025 A000006 STATE STREET BANK & TRUST CO. 025 B000006 04-2456637 025 C000006 D 025 D000006 13382 025 A000007 CREDIT SUISSE GROUP 025 B000007 13-5659485 025 C000007 D 025 D000007 5135 025 A000008 MORGAN STANLEY 025 B000008 36-3145972 025 C000008 D 025 D000008 2321 026 A000000 N 026 B000000 N PAGE 4 026 C000000 N 026 D000000 Y 026 E000000 N 026 F000000 N 026 G010000 N 026 G020000 N 026 H000000 N 027 000000 N 028 A010000 0 028 A020000 0 028 A030000 0 028 A040000 0 028 B010000 0 028 B020000 0 028 B030000 0 028 B040000 0 028 C010000 0 028 C020000 0 028 C030000 0 028 C040000 0 028 D010000 0 028 D020000 0 028 D030000 0 028 D040000 0 028 E010000 0 028 E020000 0 028 E030000 0 028 E040000 0 028 F010000 0 028 F020000 0 028 F030000 0 028 F040000 0 028 G010000 0 028 G020000 0 028 G030000 0 028 G040000 0 028 H000000 0 030 A000000 0 030 B000000 0.00 030 C000000 0.00 031 A000000 0 031 B000000 0 032 000000 0 033 000000 0 035 000000 0 036 B000000 0 038 000000 0 042 A000000 0 042 B000000 0 042 C000000 0 042 D000000 0 PAGE 5 042 E000000 0 042 F000000 0 042 G000000 0 042 H000000 0 043 000000 0 044 000000 0 045 000000 Y 046 000000 N 047 000000 Y 048 000000 0.750 048 A010000 0 048 A020000 0.000 048 B010000 0 048 B020000 0.000 048 C010000 0 048 C020000 0.000 048 D010000 0 048 D020000 0.000 048 E010000 0 048 E020000 0.000 048 F010000 0 048 F020000 0.000 048 G010000 0 048 G020000 0.000 048 H010000 0 048 H020000 0.000 048 I010000 0 048 I020000 0.000 048 J010000 0 048 J020000 0.000 048 K010000 0 048 K020000 0.000 049 000000 N 050 000000 N 051 000000 N 052 000000 N 053 A000000 Y 054 A000000 Y 054 B000000 Y 054 C000000 N 054 D000000 N 054 E000000 N 054 F000000 N 054 G000000 Y 054 H000000 Y 054 I000000 N 054 J000000 Y 054 K000000 N 054 L000000 N 054 M000000 Y 054 N000000 N PAGE 6 054 O000000 N 055 A000000 N 055 B000000 N 056 000000 Y 057 000000 N 058 A000000 N 059 000000 Y 060 A000000 Y 060 B000000 Y 061 000000 0 062 A000000 Y 062 B000000 0.0 062 C000000 0.0 062 D000000 0.4 062 E000000 0.0 062 F000000 0.0 062 G000000 0.0 062 H000000 0.0 062 I000000 0.0 062 J000000 0.0 062 K000000 0.0 062 L000000 6.1 062 M000000 0.2 062 N000000 0.0 062 O000000 0.3 062 P000000 74.5 062 Q000000 18.6 062 R000000 1.4 063 A000000 0 063 B000000 5.3 064 A000000 N 064 B000000 Y 065 000000 N 066 A000000 N 067 000000 N 068 A000000 N 068 B000000 N 069 000000 N 070 A010000 Y 070 A020000 Y 070 B010000 N 070 B020000 N 070 C010000 Y 070 C020000 N 070 D010000 N 070 D020000 N 070 E010000 Y 070 E020000 Y 070 F010000 Y 070 F020000 N 070 G010000 Y PAGE 7 070 G020000 Y 070 H010000 Y 070 H020000 N 070 I010000 N 070 I020000 N 070 J010000 Y 070 J020000 Y 070 K010000 Y 070 K020000 N 070 L010000 Y 070 L020000 Y 070 M010000 Y 070 M020000 Y 070 N010000 Y 070 N020000 N 070 O010000 Y 070 O020000 N 070 P010000 Y 070 P020000 N 070 Q010000 N 070 Q020000 N 070 R010000 Y 070 R020000 N 071 A000000 241678 071 B000000 264290 071 C000000 695804 071 D000000 35 072 A000000 6 072 B000000 30388 072 C000000 841 072 D000000 0 072 E000000 14 072 F000000 2469 072 G000000 0 072 H000000 0 072 I000000 16 072 J000000 119 072 K000000 0 072 L000000 78 072 M000000 27 072 N000000 0 072 O000000 0 072 P000000 125 072 Q000000 0 072 R000000 52 072 S000000 32 072 T000000 0 072 U000000 0 072 V000000 0 072 W000000 124 072 X000000 3042 PAGE 8 072 Y000000 54 072 Z000000 28255 072AA000000 42118 072BB000000 0 072CC010000 24565 072CC020000 0 072DD010000 45592 072DD020000 0 072EE000000 0 073 A010000 1.2275 073 A020000 0.0000 073 B000000 0.0000 073 C000000 0.0000 074 A000000 17 074 B000000 2594 074 C000000 42632 074 D000000 653706 074 E000000 9818 074 F000000 0 074 G000000 0 074 H000000 0 074 I000000 223 074 J000000 0 074 K000000 0 074 L000000 14156 074 M000000 7454 074 N000000 730600 074 O000000 4089 074 P000000 428 074 Q000000 0 074 R010000 16179 074 R020000 0 074 R030000 0 074 R040000 11539 074 S000000 169000 074 T000000 529365 074 U010000 37280 074 U020000 0 074 V010000 14.20 074 V020000 0.00 074 W000000 0.0000 074 X000000 68 074 Y000000 17047 075 A000000 0 075 B000000 663821 076 000000 14.99 077 A000000 Y 077 B000000 N 077 C000000 Y 077 D000000 Y 077 E000000 N PAGE 9 077 F000000 N 077 G000000 N 077 H000000 N 077 I000000 N 077 J000000 N 077 K000000 N 077 L000000 N 077 M000000 N 077 N000000 N 077 O000000 N 077 P000000 N 077 Q010000 Y 077 Q020000 N 077 Q030000 N 078 000000 N 080 C000000 0 081 B000000 0 082 B000000 0 083 B000000 0 084 B000000 0 086 A010000 0 086 A020000 0 086 B010000 0 086 B020000 0 086 C010000 0 086 C020000 0 086 D010000 0 086 D020000 0 086 E010000 0 086 E020000 0 086 F010000 0 086 F020000 0 087 A010000 COMMON 087 A020000 72200U100 087 A030000 PCN 087 B010000 PREFERRED SERIES M 087 B020000 72200U209 087 C010000 PREFERRED SERIES T 087 C020000 72200U308 088 A000000 N 088 B000000 N 088 C000000 N 088 D000000 N SIGNATURE LAWRENCE ALTADONNA TITLE TREASURER