Can NTT DOCOMO BUSINESS’ APN InterLink transform Hong Kong’s financial infrastructure with photonic speed?

NTT DOCOMO BUSINESS—formerly NTT Communications Corporation—has launched APN InterLink in partnership with its Hong Kong-based subsidiary NTT Com Asia, introducing a photonics-powered, ultra-low latency connectivity service designed specifically for financial institutions operating in Hong Kong. The service, which will become commercially available from November 1, 2025, is part of NTT Group’s broader IOWN (Innovative Optical and Wireless Network) initiative, designed to deliver next-generation digital infrastructure using All-Photonics Network (APN) technology.

This Hong Kong deployment marks a strategic milestone in NTT’s plan to establish a regional network of IOWN-compliant financial infrastructure nodes, with future expansion already planned through the Asia Submarine-cable Express (ASE) connecting Tokyo and Hong Kong.

What makes APN InterLink different from conventional financial network infrastructure in Hong Kong?

Unlike traditional enterprise networks that rely on packet-based electronic transmission, APN InterLink replaces legacy systems with photonic communications. This optical approach drastically reduces latency, jitter, and energy consumption, while enabling deterministic throughput for real-time trading, algorithmic decision engines, and proximity-based data services. The service is purpose-built for the demands of high-frequency trading (HFT), real-time transaction flows, and AI-enhanced financial operations, where even a single millisecond can influence multi-million-dollar outcomes.

The APN InterLink service suite is anchored by two critical connectivity solutions tailored for Hong Kong’s financial sector. The first is APN DCLink, which establishes a photonics-based interconnection between NTT Com Asia’s Financial Data Center and its Tai Po Data Center. This link enables ultra-low latency data transfer between two of the city’s most strategic infrastructure points. Notably, the Financial Data Center is located in close proximity to the Hong Kong Stock Exchange (HKEX), making it ideal for latency-sensitive applications such as algorithmic trading and real-time order execution.

The second component is APN DedicatedLink, a flexible networking option that provides high-speed, low-latency connectivity between any two customer facilities or between client locations and NTT’s data centers. This capability is especially valuable for financial institutions with multiple operational nodes across Hong Kong, as it ensures consistent and direct access to market engines, data feeds, and execution platforms with minimal delay.

Why has NTT chosen Hong Kong as the launchpad for its regional APN and IOWN expansion?

The choice of Hong Kong as the first non-Japan deployment site for APN InterLink reflects its continued role as a premier financial services hub in Asia. As trading volumes, market complexity, and digital financial instruments have surged, the region’s institutional players are increasingly turning to high-precision, low-latency infrastructure to support algorithmic trading strategies and large-scale distributed financial platforms.

NTT DOCOMO BUSINESS sees Hong Kong as a natural testing ground for deploying next-generation trading infrastructure due to its advanced capital markets, proximity trading culture, and demand for fail-proof disaster recovery. The new APN InterLink service acts as a foundational layer for achieving real-time, AI-integrated, and highly secure financial transactions across a geographically distributed footprint.

How does the IOWN initiative support next-generation financial operations and ESG-aligned infrastructure?

IOWN—NTT’s global initiative to rearchitect information infrastructure using photonics, AI integration, and distributed computing—is not merely a telecom evolution. It represents a structural transformation in how bandwidth, compute, and latency are managed across industries. Financial services, with their demand for split-second decisions, geographically disbursed data sources, and real-time regulatory compliance, stand to benefit substantially.

The use of APN technology also aligns with ESG goals due to its lower energy usage per transmitted bit, higher bandwidth density, and ability to support intelligent automation and analytics with minimal environmental overhead. For institutions seeking to modernize their IT while maintaining their net-zero roadmaps, the APN approach offers both performance and sustainability advantages.

What roles will NTT DOCOMO BUSINESS and NTT Com Asia play in regional APN deployment?

Under the current regional roadmap, NTT DOCOMO BUSINESS will manage Japan-based deployments through its “docomo business APN Plus powered by IOWN” service, while NTT Com Asia leads sales and implementation for APN InterLink in Hong Kong. Both entities will coordinate to interconnect their networks via the ASE cable system, forming a high-speed photonic bridge between Tokyo and Hong Kong.

The goal is to eventually create a multi-node IOWN APN mesh across other financial centers in Singapore, Taipei, and Seoul, supporting a resilient, high-availability platform for cross-border market activities and large-scale disaster recovery.

How will banks, trading firms, and institutional IT leaders evaluate APN InterLink for next-gen financial infrastructure?

While NTT Group has not disclosed specific pilot clients, the target audience includes banks, hedge funds, proprietary trading firms, and asset managers that require microsecond-level latency for execution algorithms and real-time market surveillance. For these organizations, APN InterLink represents more than a technical upgrade—it could redefine their infrastructure baseline.

Investor sentiment around NTT Holdings has already shown signs of support for its enterprise service diversification strategy. Analysts see the move as part of the group’s pivot from commodity telecom offerings toward high-value B2B infrastructure, especially in verticals like finance, AI, and edge compute. The launch of APN InterLink adds another revenue stream while reinforcing the group’s positioning as a global innovation leader in telecom and IT convergence.

What did NTT’s leadership say about the commercial launch and future expansion?

According to Hisashi Fujishima, Senior Executive Officer at NTT DOCOMO BUSINESS, the company’s objective is to connect APN InterLink in Hong Kong with APN Plus in Japan to deliver a seamless, global photonics service for mission-critical applications. He noted that the initial response from Japanese customers has been strong, and the firm expects similar demand in Hong Kong.

Daisuke Kuroda, CEO of NTT Com Asia, underscored Hong Kong’s status as a strategic financial hub and confirmed that the APN InterLink service is intended to support the buildout of next-generation financial infrastructure. He highlighted the role of IOWN technology in enabling digital transformation, real-time automation, and secure multi-site business continuity.

How does this launch reflect broader trends in global financial infrastructure modernization?

The global financial services industry is in the midst of a high-stakes infrastructure upgrade cycle, driven by the convergence of AI, quantum compute, regulatory compliance automation, and data sovereignty frameworks. While traditional cloud and data center services remain foundational to most enterprise IT strategies, they are increasingly viewed as inadequate for the next generation of financial infrastructure demands.

Emerging use cases—such as real-time fraud detection powered by AI, federated learning for decentralized financial models, instant regulatory reporting, and multi-site trading coordination—require deterministic latency, intelligent orchestration, and secure, high-throughput connectivity that conventional electronic networks struggle to deliver. Photonic infrastructure like APN InterLink is being positioned as the architectural upgrade necessary to meet these evolving performance and compliance thresholds.

Photonic networking, once a niche concept, is now being repositioned as a core infrastructure solution for these use cases. With APN InterLink, NTT DOCOMO BUSINESS and NTT Com Asia are bringing that capability into production at scale—and in a region where milliseconds can define financial success.

Key takeaways: NTT DOCOMO BUSINESS brings photonic financial connectivity to Hong Kong with APN InterLink

• NTT DOCOMO BUSINESS and NTT Com Asia have launched APN InterLink, an ultra-low latency, photonics-based connectivity service for Hong Kong’s financial sector, going live on November 1, 2025.
• The service leverages All-Photonics Network (APN) infrastructure under the IOWN® initiative, supporting latency-sensitive financial operations such as algorithmic trading, real-time transactions, and AI-based market analytics.
• APN InterLink includes APN DCLink for high-speed interconnection between NTT Com Asia’s Financial Data Center and Tai Po Data Center, and APN DedicatedLink for flexible site-to-site networking across Hong Kong.
• The rollout establishes a foundation for linking Japan’s APN Plus service with Hong Kong via the Asia Submarine-cable Express (ASE), forming a high-performance photonic corridor between two major financial centers.
• Institutional buyers and infrastructure leaders are expected to evaluate APN InterLink as a next-generation alternative to conventional cloud and IP networks, especially for applications demanding deterministic latency and regulatory precision.
• The initiative aligns with ESG goals through energy-efficient photonic transmission and supports disaster recovery, intelligent automation, and financial AI deployment at scale.
• NTT Group aims to expand its APN footprint across Asia-Pacific, with future hubs expected in Singapore, Taiwan, and South Korea, reinforcing its shift from telecom to high-value B2B infrastructure solutions.