| IP: | 133.57.21.227 |
| Country: | Japan (JP) |
| Region: | 40 |
| City: | Tachikawa |
| Latitude: | 35.6928 |
| Longitude: | 139.4181 |
| Reverse DNS: | pc227.seg21.nipr.ac.jp |
| Class A: | 133 |
| Class B: | 133.57 |
| Class C: | 133.57.21 |
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