| 157.71.0.0/17 | JR East Information Systems Company | |
| 157.71.0.0/24 | JR East Information Systems Company | |
| 157.71.1.0/24 | JR East Information Systems Company | |
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| 157.71.4.0/22 | JR East Information Systems Company | |
| 157.71.8.0/21 | JR East Information Systems Company | |
| 157.71.16.0/23 | JR East Information Systems Company | |
| 157.71.18.0/24 | JR East Information Systems Company | |
| 157.71.19.0/24 | JR East Information Systems Company | |
| 157.71.20.0/24 | JR East Information Systems Company | |
| 157.71.21.0/24 | JR East Information Systems Company | |
| 157.71.22.0/23 | JR East Information Systems Company | |
| 157.71.24.0/21 | JR East Information Systems Company | |
| 157.71.32.0/19 | JR East Information Systems Company | |
| 157.71.64.0/24 | JR East Information Systems Company | |
| 157.71.65.0/24 | JR East Information Systems Company | |
| 157.71.66.0/23 | JR East Information Systems Company | |
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| 157.71.80.0/22 | JR East Information Systems Company | |
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| 157.71.86.0/23 | JR East Information Systems Company | |
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| 157.71.96.0/20 | JR East Information Systems Company | |
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| 157.71.128.0/17 | JR East Information Systems Company | |
| 157.71.128.0/20 | JR East Information Systems Company | |
| 157.71.144.0/20 | JR East Information Systems Company | |
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| 157.71.176.0/20 | JR East Information Systems Company | |
| 157.71.192.0/18 | JR East Information Systems Company | |
| 157.72.0.0/17 | JR East Information Systems Company | |
| 157.72.0.0/19 | JR East Information Systems Company | |
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| 157.72.128.0/20 | JR East Information Systems Company | |
| 157.72.144.0/22 | JR East Information Systems Company | |
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| 157.74.0.0/17 | JR East Information Systems Company | |
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| 157.75.128.0/18 | JR East Information Systems Company | |
| 157.75.192.0/18 | JR East Information Systems Company | |