Les adresses IP débutant par 121.140.6 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 | |
| Dernière mise à jour | 27/07/2019 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | KR | Corée du Sud | - | Kwangmyong | 37,4772 | 126,8664 | 2019-07-27 |
| MaxMind | KR | Corée du Sud | - | Seoul | 37,5111 | 126,9743 | 2019-07-27 |
| Whois | KR | - | - | - | 128 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 121.140.6.0 | 2039219712 | 0 |
| 121.140.6.1 | 2039219713 | 0 |
| 121.140.6.2 | 2039219714 | 0 |
| 121.140.6.3 | 2039219715 | 0 |
| 121.140.6.4 | 2039219716 | 0 |
| 121.140.6.5 | 2039219717 | 0 |
| 121.140.6.6 | 2039219718 | 0 |
| 121.140.6.7 | 2039219719 | 0 |
| 121.140.6.8 | 2039219720 | 0 |
| 121.140.6.9 | 2039219721 | 0 |
| 121.140.6.10 | 2039219722 | 0 |
| 121.140.6.11 | 2039219723 | 0 |
| 121.140.6.12 | 2039219724 | 0 |
| 121.140.6.13 | 2039219725 | 0 |
| 121.140.6.14 | 2039219726 | 0 |
| 121.140.6.15 | 2039219727 | 0 |
| 121.140.6.16 | 2039219728 | 0 |
| 121.140.6.17 | 2039219729 | 0 |
| 121.140.6.18 | 2039219730 | 0 |
| 121.140.6.19 | 2039219731 | 0 |
| 121.140.6.20 | 2039219732 | 0 |
| 121.140.6.21 | 2039219733 | 0 |
| 121.140.6.22 | 2039219734 | 0 |
| 121.140.6.23 | 2039219735 | 0 |
| 121.140.6.24 | 2039219736 | 0 |
| 121.140.6.25 | 2039219737 | 0 |
| 121.140.6.26 | 2039219738 | 0 |
| 121.140.6.27 | 2039219739 | 0 |
| 121.140.6.28 | 2039219740 | 0 |
| 121.140.6.29 | 2039219741 | 0 |
| 121.140.6.30 | 2039219742 | 0 |
| 121.140.6.31 | 2039219743 | 0 |
| 121.140.6.32 | 2039219744 | 0 |
| 121.140.6.33 | 2039219745 | 0 |
| 121.140.6.34 | 2039219746 | 0 |
| 121.140.6.35 | 2039219747 | 0 |
| 121.140.6.36 | 2039219748 | 0 |
| 121.140.6.37 | 2039219749 | 0 |
| 121.140.6.38 | 2039219750 | 0 |
| 121.140.6.39 | 2039219751 | 0 |
| 121.140.6.40 | 2039219752 | 0 |
| 121.140.6.41 | 2039219753 | 0 |
| 121.140.6.42 | 2039219754 | 0 |
| 121.140.6.43 | 2039219755 | 0 |
| 121.140.6.44 | 2039219756 | 0 |
| 121.140.6.45 | 2039219757 | 0 |
| 121.140.6.46 | 2039219758 | 0 |
| 121.140.6.47 | 2039219759 | 0 |
| 121.140.6.48 | 2039219760 | 0 |
| 121.140.6.49 | 2039219761 | 0 |
| 121.140.6.50 | 2039219762 | 0 |
| 121.140.6.51 | 2039219763 | 0 |
| 121.140.6.52 | 2039219764 | 0 |
| 121.140.6.53 | 2039219765 | 0 |
| 121.140.6.54 | 2039219766 | 0 |
| 121.140.6.55 | 2039219767 | 0 |
| 121.140.6.56 | 2039219768 | 0 |
| 121.140.6.57 | 2039219769 | 0 |
| 121.140.6.58 | 2039219770 | 0 |
| 121.140.6.59 | 2039219771 | 0 |
| 121.140.6.60 | 2039219772 | 0 |
| 121.140.6.61 | 2039219773 | 0 |
| 121.140.6.62 | 2039219774 | 0 |
| 121.140.6.63 | 2039219775 | 0 |
| 121.140.6.64 | 2039219776 | 0 |
| 121.140.6.65 | 2039219777 | 0 |
| 121.140.6.66 | 2039219778 | 0 |
| 121.140.6.67 | 2039219779 | 0 |
| 121.140.6.68 | 2039219780 | 0 |
| 121.140.6.69 | 2039219781 | 0 |
| 121.140.6.70 | 2039219782 | 0 |
| 121.140.6.71 | 2039219783 | 0 |
| 121.140.6.72 | 2039219784 | 0 |
| 121.140.6.73 | 2039219785 | 0 |
| 121.140.6.74 | 2039219786 | 0 |
| 121.140.6.75 | 2039219787 | 0 |
| 121.140.6.76 | 2039219788 | 0 |
| 121.140.6.77 | 2039219789 | 0 |
| 121.140.6.78 | 2039219790 | 0 |
| 121.140.6.79 | 2039219791 | 0 |
| 121.140.6.80 | 2039219792 | 0 |
| 121.140.6.81 | 2039219793 | 0 |
| 121.140.6.82 | 2039219794 | 0 |
| 121.140.6.83 | 2039219795 | 0 |
| 121.140.6.84 | 2039219796 | 0 |
| 121.140.6.85 | 2039219797 | 0 |