2025年全球网络状况报告：传输网、IP 网、数据中心、云与广域网与国际语音业务

Introduction1Transport Networks3IP Networks7Data Centers11Cloud and WAN17International Voice21Glossary24Research Catalog26 TheStateof theNetwork Brought to You ByReal Data Hello, gentle readers, and welcome to the2025 State of theNetwork Report—our eighth edition. The TeleGeography team spent the last year compiling marketsurveys, building algorithms, and analyzing emerging trends,and now we’re ready to share the highlights. Think of this e-book as your 2025 update on thetelecommunications industry. As always, we extract the major global bandwidth headlines,take a snapshot of the global internet, peruse the latest in datacenters, check in on the cloud, and finish with an update fromthe voice market. If you’re interested in topics like subsea cable activity, cloudgeography developments, the effect of AI on long-haulcapacity requirements, and data center power scarcity, you’rein the right place. We’ll leave you to it. Thanks, as always, for checking out ourresearch. — The TeleGeography Team P.S. If these insights are up your alley, we’ve got lots more in ourfull suite of research apps. The Experts Behind This E-book Paul BrodskySenior Research ManagerConnect on LinkedIn Lane BurdetteSenior Research AnalystConnect on LinkedIn Jon HjemboSenior Research ManagerConnect on LinkedIn Patrick ChristianSenior Research ManagerConnect on LinkedIn Alan MauldinResearch DirectorConnect on LinkedIn Tim StrongeChief Research OfficerConnect on LinkedIn Juan VelandiaSenior Research AnalystConnect on LinkedIn Marvin TanSenior Research AnalystConnect on LinkedIn Recent Presentations Watch & Download •2025 Telecom Workshop•AI and Submarine Cables•How To Measure Connectivity•2024 Telecom Workshop TRANSPORT NETWORKSLiving up to Our Potential (Capacity) Those who follow the telecommunications space know thatglobal network infrastructure and bandwidth markets areamong the most fundamental building blocks of the globaleconomy. As with other areas of this industry, the capacity market seesgrowth, struggle, uncertainty, and advancement. Our TransportNetworks Research Service assesses the state of the globaltelecom capacity market and evaluates the factors that shapelong-term demand and price movements. We look at marketconditions on both a global level and on a regional level,focusing on critical submarine cable routes. Demand Trends Worldwide bandwidth demand continues to grow at a steadypace. Annual demand growth has decelerated slowly, butaggregate demand more than tripled between 2019 and 2023to reach an eye-popping 5 Pbps. On a regional level, most parts of the world have seencomparable growth at about 35-40% CAGR since 2019. Themarkets that stand out are Africa, where capacity growth is stillsurging at a nearly 50% CAGR, and the U.S. & Canada, wheremarket maturity has slowed demand to around 30% CAGR. The Role of Content Providers Content and cloud providers—most specifically a handful ofcompanies like Google, Meta, Microsoft, and Amazon—arefirmly entrenched as the biggest users of network capacityglobally. As recently as 2016, internet backbone providersaccounted for the majority of demand. Not anymore. As of2023, content and cloud networks accounted for more than70% of all bandwidth usage. This demand scale is not the same on every route that we trackat TeleGeography. On some of the biggest subsea routes like the trans-Atlantic,trans-Pacific, and intra-Asia, content providers account for thevast majority of demand (80% or more). Other routes remainmore carrier-driven, such as the U.S.-Latin America routes,and routes connecting Europe to Africa, Asia, and the MiddleEast. Why the contrast? Content providers are focused onconnecting data centers across different zones. Due to theconcentration of service delivery in major Asian, European,and U.S. markets, core routes connecting these regions are ofhighest priority to the content providers. Construction Costof Submarine Cables That said, content provider demand is rapidly growingeverywhere and outpaces demand growth even on routeswhere carriers continue to drive overall capacity usage. Asmight be expected, content provider demand growth isfastest in regions where carriers are still dominant, like Africa,Latin America, and the Middle East. But there’s no part of theglobe where content demand growth isn’t outpacing that ofinternet backbone providers. Construction costs in USD billions Meeting Demand Requirements Investment in new submarine cables has surged in recentyears. Despite some fluctuations, new cable investment hasaveraged over $2 billion per year in the past 8 years. The valueof new submarine cables entering service from 2024-2026 isforecasted to reach over $10 billion. The amount of potential capacity the newest generation ofcables will provide is incredible. Several major routes will seetheir potential capacity more than double once new cablesare completed. Pricing We’ve witnessed an unprecedented slowing of bandwidthprice erosion g