News Releases
OPTAGE Enhances Data Center Interconnection Services in the Kansai Region Launching Full-Scale Dark Fiber Service “Flex Dark Fiber”
— Interconnecting Central Osaka, Saito, Keihanna, Ikoma, Sanda, and Nanko —
October 27,2026
OPTAGE Inc.
OPTAGE Inc. (Chuo-ku, Osaka) has decided to enhance its DCI (Data Center Interconnection) services by leveraging its existing telecommunications network in the Kansai region. The enhanced service, named “Flex Dark Fiber,” is scheduled to launch during fiscal year 2026.
The service provides high-quality, stable connectivity between data centers by offering dedicated optical fiber strands (dark fiber) through OPTAGE's optical fiber network connecting major data center areas in Kansai, including central Osaka, Saito, Keihanna, Ikoma, Sanda, and Nanko.
In particular, the connection between central Osaka and Saito will utilize an underground fiber route, enabling connectivity via the short route.

1. Background and Objectives
The rapid growth of generative AI and cloud services has accelerated the construction of data centers both in Japan and overseas, leading to increasing demand for networks connecting these facilities.
From the perspective of enhancing the resilience of digital infrastructure, one of the key challenges is to promote the geographic decentralization of these facilities and strengthen telecommunications networks.
Against this backdrop, the construction of large-scale data centers is progressing in the Kansai region, particularly in the Saito and Keihanna areas. Consequently, there is growing demand for high-quality network connectivity that can be delivered within a short timeframe.
OPTAGE has been providing a wide range of telecommunications services by utilizing its extensive optical fiber network throughout the Kansai region.
In anticipation of future growth in demand for DCI services, OPTAGE has decided to significantly expand its optical fiber network capacity in the Saito and Keihanna areas and launch a full-scale dark fiber service under the name “Flex Dark Fiber.”
2. Service Overview
“Flex Dark Fiber” is a DCI service that connects multiple data centers in central Osaka, Saito, Keihanna, Ikoma, Sanda, Nanko, and other areas throughout Kansai via OPTAGE's high-quality optical fiber network.
The service enables flexible connectivity between data centers in the Kansai region, including redundant network configurations utilizing diverse fiber routes.
For the Saito area, OPTAGE will expand its highly reliable underground fiber route connecting Saito and Osaka City via the short route by approximately 1,000 fiber strands. This expansion will enable OPTAGE to meet growing customer demand.
— Service Details —
Service Name: Flex Dark Fiber
Service Areas: Central Osaka, Saito, Keihanna/Ikoma, Sanda, Nanko, and other areas throughout the Kansai region
Service Description: Provision of dedicated optical fiber strands
Service Unit: 2 fiber strands (SMF)
For additional details, please contact our sales representatives.
3. Service Launch
During fiscal year 2026.
4. Related Website
https://optage.co.jp/business/en/service/dci/lp_en.html
As a comprehensive information and communication service provider, OPTAGE is committed to realizing a prosperous future by offering a wide range of data center interconnection services in Japan and overseas.
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- *:The information contained in this press release, including contact details, is current as of the date of announcement and is subject to change without notice.