| IP: | 123.109.156.121 |
| Country: | |
| Region: | 11 |
| City: | Gwangjin-gu |
| Latitude: | 37.5409 |
| Longitude: | 127.0762 |
| Zip code: | 050 |
| Reverse DNS: | 123.109.156.121 |
| Timezone: | Asia/Seoul (2025-11-14 03:50 KST) |
| Class A: | 123 |
| Class B: | 123.109 |
| Class C: | 123.109.156 |
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