The North American OTIC in NYC Metro Area/East (COSMOS) is jointly hosted by Rutgers University/WINLAB and AT&T.

The Japan OTIC is jointly hosted by KDDI, NTT DOCOMO, Rakuten Mobile, SoftBank and YRP R&D Promotion Committee.

The European OTIC in Madrid is hosted by Telefonica, member of the O-RAN ALLIANCE, and global operator present in Europe and Latin America.

The European OTIC in Torino is hosted and sponsored by TIM, member of O-RAN ALLIANCE since 2018, the main fixed and mobile operator in Italy, with subsidiary company also in Brazil.

The European OTIC in Berlin is a part of the Integration Lab hosted by Deutsche Telekom, founder member of O-RAN ALLIANCE and one of the world's leading integrated telecommunications companies.

As a founding member of O-RAN ALLIANCE, Orange is hosting and sponsoring the European OTIC in Paris.

Auray OTIC and Security Lab, the main business of Auray Technology Corp., which is a SME contributor of O-RAN ALLIANCE, is a third-party test laboratory focusing on communication technology with cross-disciplinary expansion and integration services in Taiwan.

The Asia&Pacific OTIC in PRC is a part of the Integration Lab hosted by ZhongGuanCun (ZGC) Academy of Mobile Communication Innovation (ZAMI), a construction of China's national science and technology innovation center in Beijing, where O-RAN ALLIANCE's founding member China Mobile is one of the founders providing support and guidance to ZAMI.

The Kyrio O-RAN Test and Integration Lab is hosted by CableLabs, a member of O-RAN ALLIANCE since 2018. CableLabs/Kyrio provides the highest-quality testing services, software systems, and professional services for businesses connecting people, places, and devices. Our state-of-the-art 17,000+ square foot lab and 5,000+ square foot test house include extensive investment in robust wired and wireless test equipment.