| IP: | 121.188.78.37 |
| Country: | |
| Region: | 43 |
| City: | Cheongju-si |
| Latitude: | 36.7189 |
| Longitude: | 127.4235 |
| Zip code: | 281 |
| Reverse DNS: | 121.188.78.37 |
| Timezone: | Asia/Seoul (2026-03-17 10:11 KST) |
| Class A: | 121 |
| Class B: | 121.188 |
| Class C: | 121.188.78 |
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