PAGE 1
000 A000000 06/30/2006
000 C000000 0000894239
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 6.1
000 J000000 A
001 A000000 DUFF & PHELPS UTILITY & CORP. BOND TRUST INC.
001 B000000 811-07358
001 C000000 3125415555
002 A000000 55 EAST MONROE STREET
002 B000000 CHICAGO
002 C000000 IL
002 D010000 60603
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 N
007 B000000 0
007 C010100 1
007 C010200 2
007 C010300 3
007 C010400 4
007 C010500 5
007 C010600 6
007 C010700 7
007 C010800 8
007 C010900 9
007 C011000 10
008 A000001 DUFF & PHELPS INVESTMENT MANAGEMENT CO.
008 B000001 A
008 C000001 801-14813
008 D010001 CHICAGO
008 D020001 IL
008 D030001 60603
010 A000001 PRINCETON ADMINISTRATORS, L.P.
010 C010001 PRINCETON
010 C020001 NJ
010 C030001 08543
010 C040001 9095
011 A000001 MERRILL LYNCH, PIERCE, FENNER & SMITH INC.
011 B000001 8-7221
011 C010001 NEW YORK
011 C020001 NY
011 C030001 10080
011 A000002 EDWARDS (A.G.) & SONS, INC.
011 B000002 8-13580
011 C010002 ST. LOUIS
PAGE 2
011 C020002 MO
011 C030002 63103
011 A000003 PAINEWEBBER INCORPORATED
011 B000003 8-16267
011 C010003 NEW YORK
011 C020003 NY
011 C030003 10019
011 A000004 PRUDENTIAL SECURITIES INCORPORATED
011 B000004 8-27154
011 C010004 NEWARK
011 C020004 NJ
011 C030004 07101
011 A000005 ADVEST, INC.
011 B000005 8-21409
011 C010005 HARTFORD
011 C020005 CT
011 C030005 06103
011 A000006 DAIN BOSWORTH INCORPORATED
011 B000006 8-3259
011 C010006 MINNEAPOLIS
011 C020006 MN
011 C030006 55402
011 A000007 HILLIARD (J.J.B.), LYONS (W.L.), INC.
011 B000007 8-33133
011 C010007 LOUISVILLE
011 C020007 KY
011 C030007 40202
011 A000008 JANNEY MONTGOMERY SCOTT INC.
011 B000008 8-462
011 C010008 PHILADELPHIA
011 C020008 PA
011 C030008 19103
011 A000009 LEGG MASON WOOD WALKER, INC.
011 B000009 8-15939
011 C010009 BALTIMORE
011 C020009 MD
011 C030009 21202
012 A000001 THE BANK OF NEW YORK
012 B000001 85-05006
012 C010001 NEW YORK
012 C020001 NY
012 C030001 10286
013 A000001 ERNST & YOUNG LLP
013 B010001 CHICAGO
013 B020001 IL
013 B030001 60606
014 A000001 PHOENIX EQUITY PLANNING CORP.
014 B000001 8-014100
014 A000002 PXP SECURITIES
014 B000002 8-040035
014 A000003 RUTHERFORD, BROWN & CATHERWOOD LLC
PAGE 3
014 B000003 8-026902
014 A000004 PFG DISTRIBUTION CO.
014 B000004 8-048416
015 A000001 THE BANK OF NEW YORK
015 B000001 C
015 C010001 NEW YORK
015 C020001 NY
015 C030001 10286
015 E010001 X
018 000000 Y
019 A000000 N
019 B000000 0
020 C000001 0
020 C000002 0
020 C000003 0
020 C000004 0
020 C000005 0
020 C000006 0
020 C000007 0
020 C000008 0
020 C000009 0
020 C000010 0
021 000000 0
022 A000001 BANC OF AMERICA SECURITIES LLC
022 B000001 56-2058405
022 C000001 20596
022 D000001 9858
022 A000002 DEUTSCHE BANK SECURITIES INC.
022 B000002 13-2730828
022 C000002 6052
022 D000002 5060
022 A000003 J.P. MORGAN SECURITIES INC.
022 B000003 13-3224016
022 C000003 6570
022 D000003 0
022 A000004 MORGAN STANLEY
022 B000004 13-2655998
022 C000004 3000
022 D000004 0
022 C000005 0
022 D000005 0
022 C000006 0
022 D000006 0
022 C000007 0
022 D000007 0
022 C000008 0
022 D000008 0
022 C000009 0
022 D000009 0
022 C000010 0
022 D000010 0
PAGE 4
023 C000000 36218
023 D000000 14918
024 000000 N
026 A000000 N
026 B000000 Y
026 C000000 N
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 N
027 000000 N
045 000000 Y
046 000000 N
047 000000 Y
048 000000 0.500
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 N
054 A000000 Y
054 B000000 Y
054 C000000 N
054 D000000 N
054 E000000 N
054 F000000 N
054 G000000 N
PAGE 5
054 H000000 Y
054 I000000 N
054 J000000 Y
054 K000000 N
054 L000000 N
054 M000000 Y
054 N000000 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 0.6
062 C000000 0.0
062 D000000 0.0
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 0.0
062 M000000 13.3
062 N000000 0.7
062 O000000 0.0
062 P000000 121.2
062 Q000000 3.3
062 R000000 2.1
063 A000000 0
063 B000000 9.1
064 A000000 N
064 B000000 N
066 A000000 N
067 000000 N
068 A000000 N
068 B000000 N
069 000000 N
070 A010000 Y
070 A020000 N
070 B010000 N
070 B020000 N
070 C010000 Y
070 C020000 N
070 D010000 N
070 D020000 N
PAGE 6
070 E010000 Y
070 E020000 N
070 F010000 N
070 F020000 N
070 G010000 Y
070 G020000 N
070 H010000 N
070 H020000 N
070 I010000 N
070 I020000 N
070 J010000 Y
070 J020000 N
070 K010000 N
070 K020000 N
070 L010000 Y
070 L020000 Y
070 M010000 Y
070 M020000 N
070 N010000 Y
070 N020000 N
070 O010000 Y
070 O020000 Y
070 P010000 N
070 P020000 N
070 Q010000 N
070 Q020000 N
070 R010000 N
070 R020000 N
071 A000000 29047
071 B000000 14918
071 C000000 454848
071 D000000 3
072 A000000 6
072 B000000 14173
072 C000000 64
072 D000000 0
072 E000000 0
072 F000000 1167
072 G000000 244
072 H000000 0
072 I000000 33
072 J000000 24
072 K000000 0
072 L000000 56
072 M000000 156
072 N000000 12
072 O000000 0
072 P000000 3347
072 Q000000 0
072 R000000 22
072 S000000 49
PAGE 7
072 T000000 0
072 U000000 0
072 V000000 0
072 W000000 268
072 X000000 5378
072 Y000000 0
072 Z000000 8859
072AA000000 0
072BB000000 554
072CC010000 0
072CC020000 13888
072DD010000 12176
072DD020000 0
072EE000000 0
073 A010000 0.4500
073 A020000 0.0000
073 B000000 0.0000
073 C000000 0.0000
074 A000000 1238
074 B000000 0
074 C000000 1794
074 D000000 444556
074 E000000 6629
074 F000000 0
074 G000000 0
074 H000000 0
074 I000000 0
074 J000000 0
074 K000000 0
074 L000000 8675
074 M000000 353
074 N000000 463245
074 O000000 0
074 P000000 223
074 Q000000 141679
074 R010000 0
074 R020000 0
074 R030000 0
074 R040000 504
074 S000000 0
074 T000000 320839
074 U010000 27076
074 U020000 0
074 V010000 11.85
074 V020000 0.00
074 W000000 0.0000
074 X000000 24057
074 Y000000 0
075 A000000 0
075 B000000 328630
076 000000 11.28
PAGE 8
077 A000000 N
078 000000 N
086 A010000 51
086 A020000 645
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 STOCK
087 A020000 26432K108
087 A030000 DUC
088 A000000 N
088 B000000 N
088 C000000 N
088 D000000 N
SIGNATURE ANDREA MELIA
TITLE ACCOUNTING MANAGER