AT&T Inc. China Telecom Corporation Ltd. Colt Group Holdings Limited. CoreSite Realty Corporation (American Tower Corporation)
CyrusOne Inc. Cyxtera Technologies Inc. Digital Realty Trust Inc. Equinix Inc. Global Switch Holdings Ltd. Internap Corporation
InterXion Holding N.V. KDDI Corporation (Telehouse)
Lumen Technologies Inc. NTT Communications Corporation
QTS Realty Trust Inc. Verizon Communications Inc.