| IP: | 121.139.131.63 |
| Country: | |
| Region: | 41 |
| City: | Ansan-si |
| Latitude: | 37.3253 |
| Longitude: | 126.8178 |
| Zip code: | 153 |
| Reverse DNS: | 121.139.131.63 |
| Timezone: | Asia/Seoul (2026-04-27 08:43 KST) |
| Class A: | 121 |
| Class B: | 121.139 |
| Class C: | 121.139.131 |
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