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Nielsen CO 20070424 ACN Holdings Inc. 0001397437 522294969 DE 1231 EFFECT 33 333-175374-25 11981157 707 BROADWAY NEW YORK NY 10003 646-654-5000 707 BROADWAY NEW YORK NY 10003 Athenian Leasing CORP 0001397438 943156553 DE 1231 EFFECT 33 333-175374-21 11981150 801 WEST STREET WILMINGTON DE 19801 302-254-1004 801 WEST STREET WILMINGTON DE 19801 Nielsen Co (US), LLC 0001397508 043721439 DE 1231 EFFECT 33 333-175374-13 11981134 150 N. MARTINGALE ROAD SCHAUMBURG IL 60173 847-605-5000 150 N. 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MARTINGALE ROAD SCHAUMBURG IL 60173 847-605-5000 150 N. MARTINGALE ROAD SCHAUMBURG IL 60173 CZT/ACN Trademarks, L.L.C. 0001403041 000000000 DE 1231 EFFECT 33 333-175374-19 11981146 150 N. MARTINGALE ROAD SCHAUMBURG IL 60173 847-605-5000 150 N. MARTINGALE ROAD SCHAUMBURG IL 60173 Nielsen Business Media Holding CO 0001436367 262086718 DE 1231 EFFECT 33 333-175374-15 11981138 770 BROADWAY NEW YORK NY 10003 646-654-5000 770 BROADWAY NEW YORK NY 10003 Nielsen Mobile, LLC 0001436680 911911335 DE 1231 EFFECT 33 333-175374-11 11981130 770 BROADWAY NEW YORK NY 10003 646-654-5000 770 BROADWAY NEW YORK NY 10003 Nielsen Mobile, Inc. 20080603 AGB Nielsen Media Research B.V. 0001462272 000000000 P7 1231 EFFECT 33 333-175374-23 11981153 PRINS BERNHARDPLEIN 200 AMSTERDAM P7 1097JB 31-23-5463463 POSTBUS 990 AMSTERDAM P7 1000AZ Cambridge Group, Inc. 0001465089 362836077 IL 1231 EFFECT 33 333-175374-20 11981148 45 DANBURY ROAD WILTON CT 06897 203-563-3157 45 DANBURY ROAD WILTON CT 06897 Nielsen Co (Luxembourg) S.a r.l. 0001524886 000000000 N4 1231 EFFECT 33 333-175374-03 11981119 65 BOULEVARD GRANDE DUCHESSE CHARLOTTE N4 L-1331 (646) 654-5000 65 BOULEVARD GRANDE DUCHESSE CHARLOTTE N4 L-1331 Nielsen Co (Luxembourg) S.? r.l. 20110705 ACNielsen eRatings.com 0001524887 061561730 DE 1231 EFFECT 33 333-175374-02 11981118 770 BROADWAY NEW YORK NY 10003 (646) 654-5000 770 BROADWAY NEW YORK NY 10003 Nielsen Co Finance (Ireland) Ltd 0001524972 000000000 L2 1231 EFFECT 33 333-175374-01 11981117 14 RIVERWALK NATIONAL DIGITAL PARK CITYWEST BUSINESS DUBLIN L2 24 (646) 654-5000 14 RIVERWALK NATIONAL DIGITAL PARK CITYWEST BUSINESS DUBLIN L2 24 EFFECT 1 primary_doc.xml