| IP: | 121.65.78.51 |
| Country: | |
| Region: | 11 |
| City: | Gangdong-gu |
| Latitude: | 37.5554 |
| Longitude: | 127.1515 |
| Zip code: | 052 |
| Reverse DNS: | 121.65.78.51 |
| Timezone: | Asia/Seoul (2025-11-16 03:10 KST) |
| Class A: | 121 |
| Class B: | 121.65 |
| Class C: | 121.65.78 |
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