1 Market Overview of Managed Hosting 1.1 Managed Hosting Market Overview 1.1.1 Managed Hosting Product Scope 1.1.2 Managed Hosting Market Status and Outlook 1.2 Global Managed Hosting Market Size Overview by Region 2016 VS 2021VS 2027 1.3 Global Managed Hosting Market Size by Region (2016-2027) 1.4 Global Managed Hosting Historic Market Size by Region (2016-2021) 1.5 Global Managed Hosting Market Size Forecast by Region (2022-2027) 1.6 Key Regions, Managed Hosting Market Size (2016-2027) 1.6.1 North America Managed Hosting Market Size (2016-2027) 1.6.2 Europe Managed Hosting Market Size (2016-2027) 1.6.3 Asia-Pacific Managed Hosting Market Size (2016-2027) 1.6.4 Latin America Managed Hosting Market Size (2016-2027) 1.6.5 Middle East & Africa Managed Hosting Market Size (2016-2027) 2 Managed Hosting Market Overview by Type 2.1 Global Managed Hosting Market Size by Type: 2016 VS 2021 VS 2027 2.2 Global Managed Hosting Historic Market Size by Type (2016-2021) 2.3 Global Managed Hosting Forecasted Market Size by Type (2022-2027) 2.4 Backups and Disaster Recovery 2.5 Load Balancing 2.6 Security Services 2.7 Safeguarding Data Centers 2.8 Server Configuration, Maintenance and Monitoring 2.9 Others 3 Managed Hosting Market Overview by Application 3.1 Global Managed Hosting Market Size by Application: 2016 VS 2021 VS 2027 3.2 Global Managed Hosting Historic Market Size by Application (2016-2021) 3.3 Global Managed Hosting Forecasted Market Size by Application (2022-2027) 3.4 Small Enterprises 3.5 Medium Enterprises 3.6 Large Enterprises 4 Managed Hosting Competition Analysis by Players 4.1 Global Managed Hosting Market Size by Players (2016-2021) 4.2 Global Top Players by Company Type (Tier 1, Tier 2 and Tier 3) & (based on the Revenue in Managed Hosting as of 2020) 4.3 Date of Key Players Enter into Managed Hosting Market 4.4 Global Top Players Managed Hosting Headquarters and Area Served 4.5 Key Players Managed Hosting Product Solution and Service 4.6 Competitive Status 4.6.1 Managed Hosting Market Concentration Rate 4.6.2 Mergers & Acquisitions, Expansion Plans 5 Company (Top Players) Profiles and Key Data 5.1 Verizon Communication Limited 5.1.1 Verizon Communication Limited Profile 5.1.2 Verizon Communication Limited Main Business 5.1.3 Verizon Communication Limited Managed Hosting Products, Services and Solutions 5.1.4 Verizon Communication Limited Managed Hosting Revenue (US$ Million) & (2016-2021) 5.1.5 Verizon Communication Limited Recent Developments 5.2 Dowdupont 5.2.1 Dowdupont Profile 5.2.2 Dowdupont Main Business 5.2.3 Dowdupont Managed Hosting Products, Services and Solutions 5.2.4 Dowdupont Managed Hosting Revenue (US$ Million) & (2016-2021) 5.2.5 Dowdupont Recent Developments 5.3 SunGuard Availability Services 5.3.1 SunGuard Availability Services Profile 5.3.2 SunGuard Availability Services Main Business 5.3.3 SunGuard Availability Services Managed Hosting Products, Services and Solutions 5.3.4 SunGuard Availability Services Managed Hosting Revenue (US$ Million) & (2016-2021) 5.3.5 Data Pipe Recent Developments 5.4 Data Pipe 5.4.1 Data Pipe Profile 5.4.2 Data Pipe Main Business 5.4.3 Data Pipe Managed Hosting Products, Services and Solutions 5.4.4 Data Pipe Managed Hosting Revenue (US$ Million) & (2016-2021) 5.4.5 Data Pipe Recent Developments 5.5 IBM 5.5.1 IBM Profile 5.5.2 IBM Main Business 5.5.3 IBM Managed Hosting Products, Services and Solutions 5.5.4 IBM Managed Hosting Revenue (US$ Million) & (2016-2021) 5.5.5 IBM Recent Developments 5.6 Hosting.com 5.6.1 Hosting.com Profile 5.6.2 Hosting.com Main Business 5.6.3 Hosting.com Managed Hosting Products, Services and Solutions 5.6.4 Hosting.com Managed Hosting Revenue (US$ Million) & (2016-2021) 5.6.5 Hosting.com Recent Developments 5.7 Viawest 5.7.1 Viawest Profile 5.7.2 Viawest Main Business 5.7.3 Viawest Managed Hosting Products, Services and Solutions 5.7.4 Viawest Managed Hosting Revenue (US$ Million) & (2016-2021) 5.7.5 Viawest Recent Developments 5.8 Zcolo 5.8.1 Zcolo Profile 5.8.2 Zcolo Main Business 5.8.3 Zcolo Managed Hosting Products, Services and Solutions 5.8.4 Zcolo Managed Hosting Revenue (US$ Million) & (2016-2021) 5.8.5 Zcolo Recent Developments 5.9 Latisys 5.9.1 Latisys Profile 5.9.2 Latisys Main Business 5.9.3 Latisys Managed Hosting Products, Services and Solutions 5.9.4 Latisys Managed Hosting Revenue (US$ Million) & (2016-2021) 5.9.5 Latisys Recent Developments 5.10 CoreSite Reality Corp. 5.10.1 CoreSite Reality Corp. Profile 5.10.2 CoreSite Reality Corp. Main Business 5.10.3 CoreSite Reality Corp. Managed Hosting Products, Services and Solutions 5.10.4 CoreSite Reality Corp. Managed Hosting Revenue (US$ Million) & (2016-2021) 5.10.5 CoreSite Reality Corp. Recent Developments 5.11 Level3 Communications 5.11.1 Level3 Communications Profile 5.11.2 Level3 Communications Main Business 5.11.3 Level3 Communications Managed Hosting Products, Services and Solutions 5.11.4 Level3 Communications Managed Hosting Revenue (US$ Million) & (2016-2021) 5.11.5 Level3 Communications Recent Developments 5.12 ATandT 5.12.1 ATandT Profile 5.12.2 ATandT Main Business 5.12.3 ATandT Managed Hosting Products, Services and Solutions 5.12.4 ATandT Managed Hosting Revenue (US$ Million) & (2016-2021) 5.12.5 ATandT Recent Developments 5.13 Equinix 5.13.1 Equinix Profile 5.13.2 Equinix Main Business 5.13.3 Equinix Managed Hosting Products, Services and Solutions 5.13.4 Equinix Managed Hosting Revenue (US$ Million) & (2016-2021) 5.13.5 Equinix Recent Developments 5.14 Interxion Holding 5.14.1 Interxion Holding Profile 5.14.2 Interxion Holding Main Business 5.14.3 Interxion Holding Managed Hosting Products, Services and Solutions 5.14.4 Interxion Holding Managed Hosting Revenue (US$ Million) & (2016-2021) 5.14.5 Interxion Holding Recent Developments 5.15 Global Switch 5.15.1 Global Switch Profile 5.15.2 Global Switch Main Business 5.15.3 Global Switch Managed Hosting Products, Services and Solutions 5.15.4 Global Switch Managed Hosting Revenue (US$ Million) & (2016-2021) 5.15.5 Global Switch Recent Developments 5.16 Digital Reality 5.16.1 Digital Reality Profile 5.16.2 Digital Reality Main Business 5.16.3 Digital Reality Managed Hosting Products, Services and Solutions 5.16.4 Digital Reality Managed Hosting Revenue (US$ Million) & (2016-2021) 5.16.5 Digital Reality Recent Developments 5.17 KDDI Telehouse 5.17.1 KDDI Telehouse Profile 5.17.2 KDDI Telehouse Main Business 5.17.3 KDDI Telehouse Managed Hosting Products, Services and Solutions 5.17.4 KDDI Telehouse Managed Hosting Revenue (US$ Million) & (2016-2021) 5.17.5 KDDI Telehouse Recent Developments 5.18 CenturyLink Savvis 5.18.1 CenturyLink Savvis Profile 5.18.2 CenturyLink Savvis Main Business 5.18.3 CenturyLink Savvis Managed Hosting Products, Services and Solutions 5.18.4 CenturyLink Savvis Managed Hosting Revenue (US$ Million) & (2016-2021) 5.18.5 CenturyLink Savvis Recent Developments 5.19 NTT Corporation 5.19.1 NTT Corporation Profile 5.19.2 NTT Corporation Main Business 5.19.3 NTT Corporation Managed Hosting Products, Services and Solutions 5.19.4 NTT Corporation Managed Hosting Revenue (US$ Million) & (2016-2021) 5.19.5 NTT Corporation Recent Developments 5.20 Rackspace 5.20.1 Rackspace Profile 5.20.2 Rackspace Main Business 5.20.3 Rackspace Managed Hosting Products, Services and Solutions 5.20.4 Rackspace Managed Hosting Revenue (US$ Million) & (2016-2021) 5.20.5 Rackspace Recent Developments 6 North America 6.1 North America Managed Hosting Market Size by Country (2016-2027) 6.2 United States 6.3 Canada 7 Europe 7.1 Europe Managed Hosting Market Size by Country (2016-2027) 7.2 Germany 7.3 France 7.4 U.K. 7.5 Italy 7.6 Russia 7.7 Nordic 7.8 Rest of Europe 8 Asia-Pacific 8.1 Asia-Pacific Managed Hosting Market Size by Region (2016-2027) 8.2 China 8.3 Japan 8.4 South Korea 8.5 Southeast Asia 8.6 India 8.7 Australia 8.8 Rest of Asia-Pacific 9 Latin America 9.1 Latin America Managed Hosting Market Size by Country (2016-2027) 9.2 Mexico 9.3 Brazil 9.4 Rest of Latin America 10 Middle East & Africa 10.1 Middle East & Africa Managed Hosting Market Size by Country (2016-2027) 10.2 Turkey 10.3 Saudi Arabia 10.4 UAE 10.5 Rest of Middle East & Africa 11 Managed Hosting Market Dynamics 11.1 Managed Hosting Industry Trends 11.2 Managed Hosting Market Drivers 11.3 Managed Hosting Market Challenges 11.4 Managed Hosting Market Restraints 12 Research Finding /Conclusion 13 Methodology and Data Source 13.1 Methodology/Research Approach 13.1.1 Research Programs/Design 13.1.2 Market Size Estimation 13.1.3 Market Breakdown and Data Triangulation 13.2 Data Source 13.2.1 Secondary Sources 13.2.2 Primary Sources 13.3 Disclaimer 13.4 Author List

List of Tables Table 1. Global Market Managed Hosting Market Size (US$ Million) Comparison by Region 2016 VS 2021 VS 2027 Table 2. Global Managed Hosting Market Size by Region (2016-2021) & (US$ Million) Table 3. Global Managed Hosting Market Size Share by Region (2016-2021) Table 4. Global Managed Hosting Forecasted Market Size by Region (2022-2027) & (US$ Million) Table 5. Global Managed Hosting Forecasted Market Size Share by Region (2022-2027) Table 6. Global Managed Hosting Market Size (US$ Million) by Type: 2016 VS 2021 VS 2027 Table 7. Global Managed Hosting Market Size by Type (2016-2021) & (US$ Million) Table 8. Global Managed Hosting Revenue Market Share by Type (2016-2021) Table 9. Global Managed Hosting Forecasted Market Size by Type (2022-2027) & (US$ Million) Table 10. Global Managed Hosting Revenue Market Share by Type (2022-2027) Table 11. Global Managed Hosting Market Size (US$ Million) by Application: 2016 VS 2021 VS 2027 Table 12. Global Managed Hosting Market Size by Application (2016-2021) & (US$ Million) Table 13. Global Managed Hosting Revenue Market Share by Application (2016-2021) Table 14. Global Managed Hosting Forecasted Market Size by Application (2022-2027) & (US$ Million) Table 15. Global Managed Hosting Revenue Market Share by Application (2022-2027) Table 16. Global Managed Hosting Revenue (US$ Million) by Players (2016-2021) Table 17. Global Managed Hosting Revenue Market Share by Players (2016-2021) Table 18. Global Top Manufacturers Market Share by Company Type (Tier 1, Tier 2 and Tier 3) & (based on the Revenue in Managed Hosting as of 2020) Table 19. Date of Key Manufacturers Enter into Managed Hosting Market Table 20. Global Managed Hosting Top Players Headquarters and Area Served Table 21. Managed Hosting Product Solution and Service Table 22. Global Managed Hosting Players Market Concentration Ratio (CR5 and HHI) Table 23. Mergers & Acquisitions, Expansion Plans Table 24. Verizon Communication Limited Basic Information List Table 25. Verizon Communication Limited Description and Business Overview Table 26. Verizon Communication Limited Managed Hosting Products, Services and Solutions Table 27. Revenue (US$ Million) in Managed Hosting Business of Verizon Communication Limited (2016-2021) Table 28. Verizon Communication Limited Recent Developments Table 29. Dowdupont Basic Information List Table 30. Dowdupont Description and Business Overview Table 31. Dowdupont Managed Hosting Products, Services and Solutions Table 32. Revenue (US$ Million) in Managed Hosting Business of Dowdupont (2016-2021) Table 33. Dowdupont Recent Developments Table 34. SunGuard Availability Services Basic Information List Table 35. SunGuard Availability Services Description and Business Overview Table 36. SunGuard Availability Services Managed Hosting Products, Services and Solutions Table 37. Revenue (US$ Million) in Managed Hosting Business of SunGuard Availability Services (2016-2021) Table 38. SunGuard Availability Services Recent Developments Table 39. Data Pipe Basic Information List Table 40. Data Pipe Description and Business Overview Table 41. Data Pipe Managed Hosting Products, Services and Solutions Table 42. Revenue (US$ Million) in Managed Hosting Business of Data Pipe (2016-2021) Table 43. Data Pipe Recent Developments Table 44. IBM Basic Information List Table 45. IBM Description and Business Overview Table 46. IBM Managed Hosting Products, Services and Solutions Table 47. Revenue (US$ Million) in Managed Hosting Business of IBM (2016-2021) Table 48. IBM Recent Developments Table 49. Hosting.com Basic Information List Table 50. Hosting.com Description and Business Overview Table 51. Hosting.com Managed Hosting Products, Services and Solutions Table 52. Revenue (US$ Million) in Managed Hosting Business of Hosting.com (2016-2021) Table 53. Hosting.com Recent Developments Table 54. Viawest Basic Information List Table 55. Viawest Description and Business Overview Table 56. Viawest Managed Hosting Products, Services and Solutions Table 57. Revenue (US$ Million) in Managed Hosting Business of Viawest (2016-2021) Table 58. Viawest Recent Developments Table 59. Zcolo Basic Information List Table 60. Zcolo Description and Business Overview Table 61. Zcolo Managed Hosting Products, Services and Solutions Table 62. Revenue (US$ Million) in Managed Hosting Business of Zcolo (2016-2021) Table 63. Zcolo Recent Developments Table 64. Latisys Basic Information List Table 65. Latisys Description and Business Overview Table 66. Latisys Managed Hosting Products, Services and Solutions Table 67. Revenue (US$ Million) in Managed Hosting Business of Latisys (2016-2021) Table 68. Latisys Recent Developments Table 69. CoreSite Reality Corp. Basic Information List Table 70. CoreSite Reality Corp. Description and Business Overview Table 71. CoreSite Reality Corp. Managed Hosting Products, Services and Solutions Table 72. Revenue (US$ Million) in Managed Hosting Business of CoreSite Reality Corp. (2016-2021) Table 73. CoreSite Reality Corp. Recent Developments Table 74. Level3 Communications Basic Information List Table 75. Level3 Communications Description and Business Overview Table 76. Level3 Communications Managed Hosting Products, Services and Solutions Table 77. Revenue (US$ Million) in Managed Hosting Business of Level3 Communications (2016-2021) Table 78. Level3 Communications Recent Developments Table 79. ATandT Basic Information List Table 80. ATandT Description and Business Overview Table 81. ATandT Managed Hosting Products, Services and Solutions Table 82. Revenue (US$ Million) in Managed Hosting Business of ATandT (2016-2021) Table 83. ATandT Recent Developments Table 84. Equinix Basic Information List Table 85. Equinix Description and Business Overview Table 86. Equinix Managed Hosting Products, Services and Solutions Table 87. Revenue (US$ Million) in Managed Hosting Business of Equinix (2016-2021) Table 88. Equinix Recent Developments Table 89. Interxion Holding Basic Information List Table 90. Interxion Holding Description and Business Overview Table 91. Interxion Holding Managed Hosting Products, Services and Solutions Table 92. Revenue (US$ Million) in Managed Hosting Business of Interxion Holding (2016-2021) Table 93. Interxion Holding Recent Developments Table 94. Global Switch Basic Information List Table 95. Global Switch Description and Business Overview Table 96. Global Switch Managed Hosting Products, Services and Solutions Table 97. Revenue (US$ Million) in Managed Hosting Business of Global Switch (2016-2021) Table 98. Global Switch Recent Developments Table 99. Digital Reality Basic Information List Table 100. Digital Reality Description and Business Overview Table 101. Digital Reality Managed Hosting Products, Services and Solutions Table 102. Revenue (US$ Million) in Managed Hosting Business of Digital Reality (2016-2021) Table 103. Digital Reality Recent Developments Table 104. KDDI Telehouse Basic Information List Table 105. KDDI Telehouse Description and Business Overview Table 106. KDDI Telehouse Managed Hosting Products, Services and Solutions Table 107. Revenue (US$ Million) in Managed Hosting Business of KDDI Telehouse (2016-2021) Table 108. KDDI Telehouse Recent Developments Table 109. CenturyLink Savvis Basic Information List Table 110. CenturyLink Savvis Description and Business Overview Table 111. CenturyLink Savvis Managed Hosting Products, Services and Solutions Table 112. Revenue (US$ Million) in Managed Hosting Business of CenturyLink Savvis (2016-2021) Table 113. CenturyLink Savvis Recent Developments Table 114. NTT Corporation Basic Information List Table 115. NTT Corporation Description and Business Overview Table 116. NTT Corporation Managed Hosting Products, Services and Solutions Table 117. Revenue (US$ Million) in Managed Hosting Business of NTT Corporation (2016-2021) Table 118. NTT Corporation Recent Developments Table 119. Rackspace Basic Information List Table 120. Rackspace Description and Business Overview Table 121. Rackspace Managed Hosting Products, Services and Solutions Table 122. Revenue (US$ Million) in Managed Hosting Business of Rackspace (2016-2021) Table 123. Rackspace Recent Developments Table 124. North America Managed Hosting Market Size by Country (2016-2021) & (US$ Million) Table 125. North America Managed Hosting Market Size by Country (2022-2027) & (US$ Million) Table 126. Europe Managed Hosting Market Size by Country (2016-2021) & (US$ Million) Table 127. Europe Managed Hosting Market Size by Country (2022-2027) & (US$ Million) Table 128. Asia-Pacific Managed Hosting Market Size by Region (2016-2021) & (US$ Million) Table 129. Asia-Pacific Managed Hosting Market Size by Region (2022-2027) & (US$ Million) Table 130. Asia-Pacific Managed Hosting Market Share by Region (2016-2021) Table 131. Asia-Pacific Managed Hosting Market Share by Region (2022-2027) Table 132. Latin America Managed Hosting Market Size by Country (2016-2021) & (US$ Million) Table 133. Latin America Managed Hosting Market Size by Country (2022-2027) & (US$ Million) Table 134. Middle East & Africa Managed Hosting Market Size by Players (2016-2021) & (US$ Million) Table 135. Middle East & Africa Managed Hosting Market Size by Country (2022-2027) & (US$ Million) Table 136. Managed Hosting Market Trends Table 137. Managed Hosting Market Drivers Table 138. Managed Hosting Market Challenges Table 139. Managed Hosting Market Restraints Table 140. Research Programs/Design for This Report Table 141. Key Data Information from Secondary Sources Table 142. Key Data Information from Primary Sources List of Figures Figure 1. Global Managed Hosting Market Size Year-over-Year 2016-2027 & (US$ Million) Figure 2. Global Managed Hosting Market Size (US$ Million), 2016 VS 2021 VS 2027 Figure 3. Global Managed Hosting Market Share by Regions: 2021 VS 2027 Figure 4. Global Managed Hosting Forecasted Market Size Share by Region (2022-2027) Figure 5. North America Managed Hosting Market Size (US$ Million) Growth Rate (2016-2027) Figure 6. Europe Managed Hosting Market Size (US$ Million) and Growth Rate (2016-2027) Figure 7. Asia-Pacific Managed Hosting Market Size (US$ Million) and Growth Rate (2016-2027) Figure 8. Latin America Managed Hosting Market Size (US$ Million) and Growth Rate (2016-2027) Figure 9. Middle East & Africa Managed Hosting Market Size (US$ Million) and Growth Rate (2016-2027) Figure 10. Global Managed Hosting Market Size Share by Type in 2021 & 2027 Figure 11. Backups and Disaster Recovery Market Size (US$ Million) YoY Growth (2016-2027) Figure 12. Load Balancing Market Size (US$ Million) YoY Growth (2016-2027) Figure 13. Security Services Market Size (US$ Million) YoY Growth (2016-2027) Figure 14. Safeguarding Data Centers Market Size (US$ Million) YoY Growth (2016-2027) Figure 15. Server Configuration, Maintenance and Monitoring Market Size (US$ Million) YoY Growth (2016-2027) Figure 16. Others Market Size (US$ Million) YoY Growth (2016-2027) Figure 17. Global Managed Hosting Market Size Share by Application in 2021 & 2027 Figure 18. Small Enterprises Market Size (US$ Million) YoY Growth (2016-2027) Figure 19. Medium Enterprises Market Size (US$ Million) YoY Growth (2016-2027) Figure 20. Large Enterprises Market Size (US$ Million) YoY Growth (2016-2027) Figure 21. Managed Hosting Market Share by Company Type (Tier 1, Tier 2 and Tier 3): 2016 VS 2020 Figure 22. Global Top 5 and Top 10 Players Managed Hosting Market Share in 2020 Figure 23. North America Managed Hosting Market Share by Country (2016-2027) Figure 24. United States Managed Hosting Market Size (2016-2027) & (US$ Million) Figure 25. Canada Managed Hosting Market Size (2016-2027) & (US$ Million) Figure 26. Germany Managed Hosting Market Size (2016-2027) & (US$ Million) Figure 27. France Managed Hosting Market Size (2016-2027) & (US$ Million) Figure 28. U.K. Managed Hosting Market Size (2016-2027) & (US$ Million) Figure 29. Italy Managed Hosting Market Size (2016-2027) & (US$ Million) Figure 30. Russia Managed Hosting Market Size (2016-2027) & (US$ Million) Figure 31. Nordic Managed Hosting Market Size (2016-2027) & (US$ Million) Figure 32. Rest of Europe Managed Hosting Market Size (2016-2027) & (US$ Million) Figure 33. Asia-Pacific Managed Hosting Market Share by Region (2016-2027) Figure 34. China Managed Hosting Market Size (2016-2027) & (US$ Million) Figure 35. Japan Managed Hosting Market Size (2016-2027) & (US$ Million) Figure 36. South Korea Managed Hosting Market Size (2016-2027) & (US$ Million) Figure 37. Southeast Asia Managed Hosting Market Size (2016-2027) & (US$ Million) Figure 38. India Managed Hosting Market Size (2016-2027) & (US$ Million) Figure 39. Australia Managed Hosting Market Size (2016-2027) & (US$ Million) Figure 40. Rest of Asia-Pacific Managed Hosting Market Size (2016-2027) & (US$ Million) Figure 41. Latin America Managed Hosting Market Share by Country (2016-2027) Figure 42. Mexico Managed Hosting Market Size (2016-2027) & (US$ Million) Figure 43. Brazil Managed Hosting Market Size (2016-2027) & (US$ Million) Figure 44. Rest of Latin America Managed Hosting Market Size (2016-2027) & (US$ Million) Figure 45. Middle East & Africa Managed Hosting Market Share by Country (2016-2027) Figure 46. Turkey Managed Hosting Market Size (2016-2027) & (US$ Million) Figure 47. Saudi Arabia Managed Hosting Market Size (2016-2027) & (US$ Million) Figure 48. UAE Managed Hosting Market Size (2016-2027) & (US$ Million) Figure 49. Rest of Middle East & Africa Managed Hosting Market Size (2016-2027) & (US$ Million) Figure 50. Bottom-up and Top-down Approaches for This Report Figure 51. Data Triangulation

Verizon Communication Limited Dowdupont SunGuard Availability Services Data Pipe IBM Hosting.com Viawest Zcolo Latisys CoreSite Reality Corp. Level3 Communications ATandT Equinix Interxion Holding Global Switch Digital Reality KDDI Telehouse CenturyLink Savvis NTT Corporation Rackspace