| IP: | 121.191.4.223 |
| Country: | |
| Region: | 43 |
| City: | Cheongju-si |
| Latitude: | 36.6378 |
| Longitude: | 127.4838 |
| Zip code: | 28515 |
| Reverse DNS: | 121.191.4.223 |
| Timezone: | Asia/Seoul (2026-05-03 08:22 KST) |
| Class A: | 121 |
| Class B: | 121.191 |
| Class C: | 121.191.4 |
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