| IP: | 121.169.21.100 |
| Country: | Korea, Republic of (KR) |
| Region: | 11 |
| City: | Seoul |
| Latitude: | 37.5664 |
| Longitude: | 126.9997 |
| Reverse DNS: | 121.169.21.100 |
| Class A: | 121 |
| Class B: | 121.169 |
| Class C: | 121.169.21 |
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