| IP: | 121.129.209.109 |
| Country: | |
| Region: | 11 |
| City: | Gangbuk-gu |
| Latitude: | 37.6383 |
| Longitude: | 127.0144 |
| Zip code: | 010 |
| Reverse DNS: | 121.129.209.109 |
| Timezone: | Asia/Seoul (2025-11-28 23:48 KST) |
| Class A: | 121 |
| Class B: | 121.129 |
| Class C: | 121.129.209 |
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