UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date: April 4, 2014 4:00 P.M.
Form: S-3
CIK: 0001553023
Company Name: CyrusOne Inc.
File Number: 333-194771
CIK: 0001575810
Company Name: CyrusOne LP
File Number: 333-194771-02
CIK: 0001575815
Company Name: CyrusOne Finance Corp.
File Number: 333-194771-01