The IP address 42.10.21 is provided by SK Telecom, it's belong to the CDIR (Classless Inter-Domain Routing) 42.16.0.0/12 (range 42.16.0.0 to 42.31.255.255). The autonomous system number (ASN) is 9644.
| ASN | 9644 |
| IP starting by | 42.16.0.0 |
| IP ending by | 42.31.255.255 |
| ASN Name | SK Telecom |
| CDIR | 42.16.0.0/12 |
| Numerical IP | |
| Registry | apnic |
| Last update | 28/07/2017 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | KR | South Korea | - | Seoul | 37.5683 | 126.9778 | 2017-07-28 |
| MaxMind | KR | South Korea | - | - | 37.5112 | 126.9741 | 2017-07-28 |
| Whois | KR | - | - | - | 128 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 42.10.21.0 | 705303808 | 0 |
| 42.10.21.1 | 705303809 | 0 |
| 42.10.21.2 | 705303810 | 0 |
| 42.10.21.3 | 705303811 | 0 |
| 42.10.21.4 | 705303812 | 0 |
| 42.10.21.5 | 705303813 | 0 |
| 42.10.21.6 | 705303814 | 0 |
| 42.10.21.7 | 705303815 | 0 |
| 42.10.21.8 | 705303816 | 0 |
| 42.10.21.9 | 705303817 | 0 |
| 42.10.21.10 | 705303818 | 0 |
| 42.10.21.11 | 705303819 | 0 |
| 42.10.21.12 | 705303820 | 0 |
| 42.10.21.13 | 705303821 | 0 |
| 42.10.21.14 | 705303822 | 0 |
| 42.10.21.15 | 705303823 | 0 |
| 42.10.21.16 | 705303824 | 0 |
| 42.10.21.17 | 705303825 | 0 |
| 42.10.21.18 | 705303826 | 0 |
| 42.10.21.19 | 705303827 | 0 |
| 42.10.21.20 | 705303828 | 0 |
| 42.10.21.21 | 705303829 | 0 |
| 42.10.21.22 | 705303830 | 0 |
| 42.10.21.23 | 705303831 | 0 |
| 42.10.21.24 | 705303832 | 0 |
| 42.10.21.25 | 705303833 | 0 |
| 42.10.21.26 | 705303834 | 0 |
| 42.10.21.27 | 705303835 | 0 |
| 42.10.21.28 | 705303836 | 0 |
| 42.10.21.29 | 705303837 | 0 |
| 42.10.21.30 | 705303838 | 0 |
| 42.10.21.31 | 705303839 | 0 |
| 42.10.21.32 | 705303840 | 0 |
| 42.10.21.33 | 705303841 | 0 |
| 42.10.21.34 | 705303842 | 0 |
| 42.10.21.35 | 705303843 | 0 |
| 42.10.21.36 | 705303844 | 0 |
| 42.10.21.37 | 705303845 | 0 |
| 42.10.21.38 | 705303846 | 0 |
| 42.10.21.39 | 705303847 | 0 |
| 42.10.21.40 | 705303848 | 0 |
| 42.10.21.41 | 705303849 | 0 |
| 42.10.21.42 | 705303850 | 0 |
| 42.10.21.43 | 705303851 | 0 |
| 42.10.21.44 | 705303852 | 0 |
| 42.10.21.45 | 705303853 | 0 |
| 42.10.21.46 | 705303854 | 0 |
| 42.10.21.47 | 705303855 | 0 |
| 42.10.21.48 | 705303856 | 0 |
| 42.10.21.49 | 705303857 | 0 |
| 42.10.21.50 | 705303858 | 0 |
| 42.10.21.51 | 705303859 | 0 |
| 42.10.21.52 | 705303860 | 0 |
| 42.10.21.53 | 705303861 | 0 |
| 42.10.21.54 | 705303862 | 0 |
| 42.10.21.55 | 705303863 | 0 |
| 42.10.21.56 | 705303864 | 0 |
| 42.10.21.57 | 705303865 | 0 |
| 42.10.21.58 | 705303866 | 0 |
| 42.10.21.59 | 705303867 | 0 |
| 42.10.21.60 | 705303868 | 0 |
| 42.10.21.61 | 705303869 | 0 |
| 42.10.21.62 | 705303870 | 0 |
| 42.10.21.63 | 705303871 | 0 |
| 42.10.21.64 | 705303872 | 0 |
| 42.10.21.65 | 705303873 | 0 |
| 42.10.21.66 | 705303874 | 0 |
| 42.10.21.67 | 705303875 | 0 |
| 42.10.21.68 | 705303876 | 0 |
| 42.10.21.69 | 705303877 | 0 |
| 42.10.21.70 | 705303878 | 0 |
| 42.10.21.71 | 705303879 | 0 |
| 42.10.21.72 | 705303880 | 0 |
| 42.10.21.73 | 705303881 | 0 |
| 42.10.21.74 | 705303882 | 0 |
| 42.10.21.75 | 705303883 | 0 |
| 42.10.21.76 | 705303884 | 0 |
| 42.10.21.77 | 705303885 | 0 |
| 42.10.21.78 | 705303886 | 0 |
| 42.10.21.79 | 705303887 | 0 |
| 42.10.21.80 | 705303888 | 0 |
| 42.10.21.81 | 705303889 | 0 |
| 42.10.21.82 | 705303890 | 0 |
| 42.10.21.83 | 705303891 | 0 |
| 42.10.21.84 | 705303892 | 0 |
| 42.10.21.85 | 705303893 | 0 |