UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date: June 10, 2013 2:00 P.M.
Form: S-4
CIK: 0001575810
Company Name: CyrusOne LP
File Number: 333-188426
CIK: 0001553023
Company Name: CyrusOne Inc.
File Number: 333-188426-06
CIK: 0001575815
Company Name: CyrusOne Finance Corp.
File Number: 333-188426-05
CIK: 0001575806
Company Name: CyrusOne GP
File Number: 333-188426-04
CIK: 0001575809
Company Name: CyrusOne LLC
File Number: 333-188426-03
CIK: 0001575811
Company Name: CyrusOne TRS Inc.
File Number: 333-188426-02
CIK: 0001575805
Company Name: CyrusOne Foreign Holdings LLC
File Number: 333-188426-01