Les adresses IP débutant par 121.131.2 sont fournies par Korea Telecom, elles appartiennent au CIDR (Classless Inter-Domain Routing) 121.128.0.0/11, le bloc IP comprant les adresses de 121.128.0.0 à 121.159.255.255). Le numéro de système autonome (ASN) est 4766.
| ASN | 4766 |
| IP commençant par | 121.128.0.0 |
| IP se terminant par | 121.159.255.255 |
| Nom ASN | Korea Telecom |
| CDIR | 121.128.0.0/11 |
| IP numérique | |
| Registe | apnic |
| Dernière mise à jour | 28/07/2018 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | KR | Corée du Sud | - | Goyang | 37,6564 | 126,835 | 2019-08-07 |
| MaxMind | KR | Corée du Sud | - | Seoul | 37,5111 | 126,9743 | 2019-08-07 |
| Whois | KR | - | - | - | 128 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 121.131.2.0 | 2038628864 | 0 |
| 121.131.2.1 | 2038628865 | 0 |
| 121.131.2.2 | 2038628866 | 0 |
| 121.131.2.3 | 2038628867 | 0 |
| 121.131.2.4 | 2038628868 | 0 |
| 121.131.2.5 | 2038628869 | 0 |
| 121.131.2.6 | 2038628870 | 0 |
| 121.131.2.7 | 2038628871 | 0 |
| 121.131.2.8 | 2038628872 | 0 |
| 121.131.2.9 | 2038628873 | 0 |
| 121.131.2.10 | 2038628874 | 0 |
| 121.131.2.11 | 2038628875 | 0 |
| 121.131.2.12 | 2038628876 | 0 |
| 121.131.2.13 | 2038628877 | 0 |
| 121.131.2.14 | 2038628878 | 0 |
| 121.131.2.15 | 2038628879 | 0 |
| 121.131.2.16 | 2038628880 | 0 |
| 121.131.2.17 | 2038628881 | 0 |
| 121.131.2.18 | 2038628882 | 0 |
| 121.131.2.19 | 2038628883 | 0 |
| 121.131.2.20 | 2038628884 | 0 |
| 121.131.2.21 | 2038628885 | 0 |
| 121.131.2.22 | 2038628886 | 0 |
| 121.131.2.23 | 2038628887 | 0 |
| 121.131.2.24 | 2038628888 | 0 |
| 121.131.2.25 | 2038628889 | 0 |
| 121.131.2.26 | 2038628890 | 0 |
| 121.131.2.27 | 2038628891 | 0 |
| 121.131.2.28 | 2038628892 | 0 |
| 121.131.2.29 | 2038628893 | 0 |
| 121.131.2.30 | 2038628894 | 0 |
| 121.131.2.31 | 2038628895 | 0 |
| 121.131.2.32 | 2038628896 | 0 |
| 121.131.2.33 | 2038628897 | 0 |
| 121.131.2.34 | 2038628898 | 0 |
| 121.131.2.35 | 2038628899 | 0 |
| 121.131.2.36 | 2038628900 | 0 |
| 121.131.2.37 | 2038628901 | 0 |
| 121.131.2.38 | 2038628902 | 0 |
| 121.131.2.39 | 2038628903 | 0 |
| 121.131.2.40 | 2038628904 | 0 |
| 121.131.2.41 | 2038628905 | 0 |
| 121.131.2.42 | 2038628906 | 0 |
| 121.131.2.43 | 2038628907 | 0 |
| 121.131.2.44 | 2038628908 | 0 |
| 121.131.2.45 | 2038628909 | 0 |
| 121.131.2.46 | 2038628910 | 0 |
| 121.131.2.47 | 2038628911 | 0 |
| 121.131.2.48 | 2038628912 | 0 |
| 121.131.2.49 | 2038628913 | 0 |
| 121.131.2.50 | 2038628914 | 0 |
| 121.131.2.51 | 2038628915 | 0 |
| 121.131.2.52 | 2038628916 | 0 |
| 121.131.2.53 | 2038628917 | 0 |
| 121.131.2.54 | 2038628918 | 0 |
| 121.131.2.55 | 2038628919 | 0 |
| 121.131.2.56 | 2038628920 | 0 |
| 121.131.2.57 | 2038628921 | 0 |
| 121.131.2.58 | 2038628922 | 0 |
| 121.131.2.59 | 2038628923 | 0 |
| 121.131.2.60 | 2038628924 | 0 |
| 121.131.2.61 | 2038628925 | 0 |
| 121.131.2.62 | 2038628926 | 0 |
| 121.131.2.63 | 2038628927 | 0 |
| 121.131.2.64 | 2038628928 | 0 |
| 121.131.2.65 | 2038628929 | 0 |
| 121.131.2.66 | 2038628930 | 0 |
| 121.131.2.67 | 2038628931 | 0 |
| 121.131.2.68 | 2038628932 | 0 |
| 121.131.2.69 | 2038628933 | 0 |
| 121.131.2.70 | 2038628934 | 0 |
| 121.131.2.71 | 2038628935 | 0 |
| 121.131.2.72 | 2038628936 | 0 |
| 121.131.2.73 | 2038628937 | 0 |
| 121.131.2.74 | 2038628938 | 0 |
| 121.131.2.75 | 2038628939 | 0 |
| 121.131.2.76 | 2038628940 | 0 |
| 121.131.2.77 | 2038628941 | 0 |
| 121.131.2.78 | 2038628942 | 0 |
| 121.131.2.79 | 2038628943 | 0 |
| 121.131.2.80 | 2038628944 | 0 |
| 121.131.2.81 | 2038628945 | 0 |
| 121.131.2.82 | 2038628946 | 0 |
| 121.131.2.83 | 2038628947 | 0 |
| 121.131.2.84 | 2038628948 | 0 |
| 121.131.2.85 | 2038628949 | 0 |