La dirección IP 121.158.0 es proporcionada por Korea Telecom, que es propiedad de la CIDR (Classless Inter-Domain Routing) 121.128.0.0/11, IP entre 121.128.0.0 a 121.159.255.255 ). El número de sistema autónomo (ASN) es 4766.
| ASN | 4766 |
| IP que comienzan con | 121.128.0.0 |
| IP que termina con | 121.159.255.255 |
| ASN Nombre | Korea Telecom |
| CDIR | 121.128.0.0/11 |
| IP numérica | |
| Registe | apnic |
| Última actualización | 19/07/2017 |

| Código País | País | Región | Ciudad | Latitud | Longitud | Última actualización | |
| IP2Location | KR | Corea del Sur | - | Kang-neung | 37,7556 | 128,8961 | 2017-07-19 |
| MaxMind | KR | Corea del Sur | - | Seoul | 37,5111 | 126,9743 | 2017-07-19 |
| Whois | KR | - | - | - | 128 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 121.158.0.0 | 2040397824 | 0 |
| 121.158.0.1 | 2040397825 | 0 |
| 121.158.0.2 | 2040397826 | 0 |
| 121.158.0.3 | 2040397827 | 0 |
| 121.158.0.4 | 2040397828 | 0 |
| 121.158.0.5 | 2040397829 | 0 |
| 121.158.0.6 | 2040397830 | 0 |
| 121.158.0.7 | 2040397831 | 0 |
| 121.158.0.8 | 2040397832 | 0 |
| 121.158.0.9 | 2040397833 | 0 |
| 121.158.0.10 | 2040397834 | 0 |
| 121.158.0.11 | 2040397835 | 0 |
| 121.158.0.12 | 2040397836 | 0 |
| 121.158.0.13 | 2040397837 | 0 |
| 121.158.0.14 | 2040397838 | 0 |
| 121.158.0.15 | 2040397839 | 0 |
| 121.158.0.16 | 2040397840 | 0 |
| 121.158.0.17 | 2040397841 | 0 |
| 121.158.0.18 | 2040397842 | 0 |
| 121.158.0.19 | 2040397843 | 0 |
| 121.158.0.20 | 2040397844 | 0 |
| 121.158.0.21 | 2040397845 | 0 |
| 121.158.0.22 | 2040397846 | 0 |
| 121.158.0.23 | 2040397847 | 0 |
| 121.158.0.24 | 2040397848 | 0 |
| 121.158.0.25 | 2040397849 | 0 |
| 121.158.0.26 | 2040397850 | 0 |
| 121.158.0.27 | 2040397851 | 0 |
| 121.158.0.28 | 2040397852 | 0 |
| 121.158.0.29 | 2040397853 | 0 |
| 121.158.0.30 | 2040397854 | 0 |
| 121.158.0.31 | 2040397855 | 0 |
| 121.158.0.32 | 2040397856 | 0 |
| 121.158.0.33 | 2040397857 | 0 |
| 121.158.0.34 | 2040397858 | 0 |
| 121.158.0.35 | 2040397859 | 0 |
| 121.158.0.36 | 2040397860 | 0 |
| 121.158.0.37 | 2040397861 | 0 |
| 121.158.0.38 | 2040397862 | 0 |
| 121.158.0.39 | 2040397863 | 0 |
| 121.158.0.40 | 2040397864 | 0 |
| 121.158.0.41 | 2040397865 | 0 |
| 121.158.0.42 | 2040397866 | 0 |
| 121.158.0.43 | 2040397867 | 0 |
| 121.158.0.44 | 2040397868 | 0 |
| 121.158.0.45 | 2040397869 | 0 |
| 121.158.0.46 | 2040397870 | 0 |
| 121.158.0.47 | 2040397871 | 0 |
| 121.158.0.48 | 2040397872 | 0 |
| 121.158.0.49 | 2040397873 | 0 |
| 121.158.0.50 | 2040397874 | 0 |
| 121.158.0.51 | 2040397875 | 0 |
| 121.158.0.52 | 2040397876 | 0 |
| 121.158.0.53 | 2040397877 | 0 |
| 121.158.0.54 | 2040397878 | 0 |
| 121.158.0.55 | 2040397879 | 0 |
| 121.158.0.56 | 2040397880 | 0 |
| 121.158.0.57 | 2040397881 | 0 |
| 121.158.0.58 | 2040397882 | 0 |
| 121.158.0.59 | 2040397883 | 0 |
| 121.158.0.60 | 2040397884 | 0 |
| 121.158.0.61 | 2040397885 | 0 |
| 121.158.0.62 | 2040397886 | 0 |
| 121.158.0.63 | 2040397887 | 0 |
| 121.158.0.64 | 2040397888 | 0 |
| 121.158.0.65 | 2040397889 | 0 |
| 121.158.0.66 | 2040397890 | 0 |
| 121.158.0.67 | 2040397891 | 0 |
| 121.158.0.68 | 2040397892 | 0 |
| 121.158.0.69 | 2040397893 | 0 |
| 121.158.0.70 | 2040397894 | 0 |
| 121.158.0.71 | 2040397895 | 0 |
| 121.158.0.72 | 2040397896 | 0 |
| 121.158.0.73 | 2040397897 | 0 |
| 121.158.0.74 | 2040397898 | 0 |
| 121.158.0.75 | 2040397899 | 0 |
| 121.158.0.76 | 2040397900 | 0 |
| 121.158.0.77 | 2040397901 | 0 |
| 121.158.0.78 | 2040397902 | 0 |
| 121.158.0.79 | 2040397903 | 0 |
| 121.158.0.80 | 2040397904 | 0 |
| 121.158.0.81 | 2040397905 | 0 |
| 121.158.0.82 | 2040397906 | 0 |
| 121.158.0.83 | 2040397907 | 0 |
| 121.158.0.84 | 2040397908 | 0 |
| 121.158.0.85 | 2040397909 | 0 |