Business Customers > Global > Global IP Network > FAQ > About NTT Com Global IP Network

| Q. | What is global Tier1? |
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| A. | An ISP group possessing a world-scale broadband IP backbone, capable of controlling its own network and does not depend on as 'upper' provider to maintain its quality. |
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| Q. | What is AS? |
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| A. | AS (Autonomous System) is an IP network operated and managed in accordance with a predefined routing policy. The Internet is composed of many of Autonomous Systems. |
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| Q. | What is AS number of NTT Com Global IP Network? |
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| A. | The AS number of NTT Com Global IP Network is 2914. |
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| Q. | Where can I find the details of NTT Com Global IP Network structure? |
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| A. | Please see 'About Ntt Communications Global IP Network'. |
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