L'indirizzo IP 121.149.3 è fornito da Korea Telecom, che è di proprietà del CIDR (Classless Inter-Domain Routing) 121.128.0.0/11, IP tra 121.128.0.0 a 121.159.255.255 ). Il numero di sistema autonomo (ASN) è 4766.
| ASN | 4766 |
| IP inizia con | 121.128.0.0 |
| IP finale con | 121.159.255.255 |
| ASN Nome | Korea Telecom |
| CDIR | 121.128.0.0/11 |
| IP numerico | |
| Registe | apnic |
| Ultimo aggiornamento | 21/09/2018 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | KR | Korea, Republic of | - | Moppo | 34,7936 | 126,3886 | 2018-09-21 |
| MaxMind | KR | Republic of Korea | - | - | 37,5112 | 126,9741 | 2018-09-21 |
| Whois | KR | - | - | - | 128 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 121.149.3.0 | 2039808768 | 0 |
| 121.149.3.1 | 2039808769 | 0 |
| 121.149.3.2 | 2039808770 | 0 |
| 121.149.3.3 | 2039808771 | 0 |
| 121.149.3.4 | 2039808772 | 0 |
| 121.149.3.5 | 2039808773 | 0 |
| 121.149.3.6 | 2039808774 | 0 |
| 121.149.3.7 | 2039808775 | 0 |
| 121.149.3.8 | 2039808776 | 0 |
| 121.149.3.9 | 2039808777 | 0 |
| 121.149.3.10 | 2039808778 | 0 |
| 121.149.3.11 | 2039808779 | 0 |
| 121.149.3.12 | 2039808780 | 0 |
| 121.149.3.13 | 2039808781 | 0 |
| 121.149.3.14 | 2039808782 | 0 |
| 121.149.3.15 | 2039808783 | 0 |
| 121.149.3.16 | 2039808784 | 0 |
| 121.149.3.17 | 2039808785 | 0 |
| 121.149.3.18 | 2039808786 | 0 |
| 121.149.3.19 | 2039808787 | 0 |
| 121.149.3.20 | 2039808788 | 0 |
| 121.149.3.21 | 2039808789 | 0 |
| 121.149.3.22 | 2039808790 | 0 |
| 121.149.3.23 | 2039808791 | 0 |
| 121.149.3.24 | 2039808792 | 0 |
| 121.149.3.25 | 2039808793 | 0 |
| 121.149.3.26 | 2039808794 | 0 |
| 121.149.3.27 | 2039808795 | 0 |
| 121.149.3.28 | 2039808796 | 0 |
| 121.149.3.29 | 2039808797 | 0 |
| 121.149.3.30 | 2039808798 | 0 |
| 121.149.3.31 | 2039808799 | 0 |
| 121.149.3.32 | 2039808800 | 0 |
| 121.149.3.33 | 2039808801 | 0 |
| 121.149.3.34 | 2039808802 | 0 |
| 121.149.3.35 | 2039808803 | 0 |
| 121.149.3.36 | 2039808804 | 0 |
| 121.149.3.37 | 2039808805 | 0 |
| 121.149.3.38 | 2039808806 | 0 |
| 121.149.3.39 | 2039808807 | 0 |
| 121.149.3.40 | 2039808808 | 0 |
| 121.149.3.41 | 2039808809 | 0 |
| 121.149.3.42 | 2039808810 | 0 |
| 121.149.3.43 | 2039808811 | 0 |
| 121.149.3.44 | 2039808812 | 0 |
| 121.149.3.45 | 2039808813 | 0 |
| 121.149.3.46 | 2039808814 | 0 |
| 121.149.3.47 | 2039808815 | 0 |
| 121.149.3.48 | 2039808816 | 0 |
| 121.149.3.49 | 2039808817 | 0 |
| 121.149.3.50 | 2039808818 | 0 |
| 121.149.3.51 | 2039808819 | 0 |
| 121.149.3.52 | 2039808820 | 0 |
| 121.149.3.53 | 2039808821 | 0 |
| 121.149.3.54 | 2039808822 | 0 |
| 121.149.3.55 | 2039808823 | 0 |
| 121.149.3.56 | 2039808824 | 0 |
| 121.149.3.57 | 2039808825 | 0 |
| 121.149.3.58 | 2039808826 | 0 |
| 121.149.3.59 | 2039808827 | 0 |
| 121.149.3.60 | 2039808828 | 0 |
| 121.149.3.61 | 2039808829 | 0 |
| 121.149.3.62 | 2039808830 | 0 |
| 121.149.3.63 | 2039808831 | 0 |
| 121.149.3.64 | 2039808832 | 0 |
| 121.149.3.65 | 2039808833 | 0 |
| 121.149.3.66 | 2039808834 | 0 |
| 121.149.3.67 | 2039808835 | 0 |
| 121.149.3.68 | 2039808836 | 0 |
| 121.149.3.69 | 2039808837 | 0 |
| 121.149.3.70 | 2039808838 | 0 |
| 121.149.3.71 | 2039808839 | 0 |
| 121.149.3.72 | 2039808840 | 0 |
| 121.149.3.73 | 2039808841 | 0 |
| 121.149.3.74 | 2039808842 | 0 |
| 121.149.3.75 | 2039808843 | 0 |
| 121.149.3.76 | 2039808844 | 0 |
| 121.149.3.77 | 2039808845 | 0 |
| 121.149.3.78 | 2039808846 | 0 |
| 121.149.3.79 | 2039808847 | 0 |
| 121.149.3.80 | 2039808848 | 0 |
| 121.149.3.81 | 2039808849 | 0 |
| 121.149.3.82 | 2039808850 | 0 |
| 121.149.3.83 | 2039808851 | 0 |
| 121.149.3.84 | 2039808852 | 0 |
| 121.149.3.85 | 2039808853 | 0 |