L'indirizzo IP 21.98.77 è fornito da China Education and Research Network Center, che è di proprietà del CIDR (Classless Inter-Domain Routing) 22.30.204.0/23, IP tra 22.30.204.0 a 22.30.205.255 ). Il numero di sistema autonomo (ASN) è 4538.
| ASN | 4538 |
| IP inizia con | 22.30.204.0 |
| IP finale con | 22.30.205.255 |
| ASN Nome | China Education and Research Network Center |
| CDIR | 22.30.204.0/23 |
| IP numerico | |
| Registe | |
| Ultimo aggiornamento | 28/09/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | US | United States | - | Columbus | 39,9664 | -83,0128 | 2017-09-28 |
| MaxMind | US | United States | - | - | 37,751 | -97,822 | 2017-09-28 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.98.77.0 | 358763776 | 0 |
| 21.98.77.1 | 358763777 | 0 |
| 21.98.77.2 | 358763778 | 0 |
| 21.98.77.3 | 358763779 | 0 |
| 21.98.77.4 | 358763780 | 0 |
| 21.98.77.5 | 358763781 | 0 |
| 21.98.77.6 | 358763782 | 0 |
| 21.98.77.7 | 358763783 | 0 |
| 21.98.77.8 | 358763784 | 0 |
| 21.98.77.9 | 358763785 | 0 |
| 21.98.77.10 | 358763786 | 0 |
| 21.98.77.11 | 358763787 | 0 |
| 21.98.77.12 | 358763788 | 0 |
| 21.98.77.13 | 358763789 | 0 |
| 21.98.77.14 | 358763790 | 0 |
| 21.98.77.15 | 358763791 | 0 |
| 21.98.77.16 | 358763792 | 0 |
| 21.98.77.17 | 358763793 | 0 |
| 21.98.77.18 | 358763794 | 0 |
| 21.98.77.19 | 358763795 | 0 |
| 21.98.77.20 | 358763796 | 0 |
| 21.98.77.21 | 358763797 | 0 |
| 21.98.77.22 | 358763798 | 0 |
| 21.98.77.23 | 358763799 | 0 |
| 21.98.77.24 | 358763800 | 0 |
| 21.98.77.25 | 358763801 | 0 |
| 21.98.77.26 | 358763802 | 0 |
| 21.98.77.27 | 358763803 | 0 |
| 21.98.77.28 | 358763804 | 0 |
| 21.98.77.29 | 358763805 | 0 |
| 21.98.77.30 | 358763806 | 0 |
| 21.98.77.31 | 358763807 | 0 |
| 21.98.77.32 | 358763808 | 0 |
| 21.98.77.33 | 358763809 | 0 |
| 21.98.77.34 | 358763810 | 0 |
| 21.98.77.35 | 358763811 | 0 |
| 21.98.77.36 | 358763812 | 0 |
| 21.98.77.37 | 358763813 | 0 |
| 21.98.77.38 | 358763814 | 0 |
| 21.98.77.39 | 358763815 | 0 |
| 21.98.77.40 | 358763816 | 0 |
| 21.98.77.41 | 358763817 | 0 |
| 21.98.77.42 | 358763818 | 0 |
| 21.98.77.43 | 358763819 | 0 |
| 21.98.77.44 | 358763820 | 0 |
| 21.98.77.45 | 358763821 | 0 |
| 21.98.77.46 | 358763822 | 0 |
| 21.98.77.47 | 358763823 | 0 |
| 21.98.77.48 | 358763824 | 0 |
| 21.98.77.49 | 358763825 | 0 |
| 21.98.77.50 | 358763826 | 0 |
| 21.98.77.51 | 358763827 | 0 |
| 21.98.77.52 | 358763828 | 0 |
| 21.98.77.53 | 358763829 | 0 |
| 21.98.77.54 | 358763830 | 0 |
| 21.98.77.55 | 358763831 | 0 |
| 21.98.77.56 | 358763832 | 0 |
| 21.98.77.57 | 358763833 | 0 |
| 21.98.77.58 | 358763834 | 0 |
| 21.98.77.59 | 358763835 | 0 |
| 21.98.77.60 | 358763836 | 0 |
| 21.98.77.61 | 358763837 | 0 |
| 21.98.77.62 | 358763838 | 0 |
| 21.98.77.63 | 358763839 | 0 |
| 21.98.77.64 | 358763840 | 0 |
| 21.98.77.65 | 358763841 | 0 |
| 21.98.77.66 | 358763842 | 0 |
| 21.98.77.67 | 358763843 | 0 |
| 21.98.77.68 | 358763844 | 0 |
| 21.98.77.69 | 358763845 | 0 |
| 21.98.77.70 | 358763846 | 0 |
| 21.98.77.71 | 358763847 | 0 |
| 21.98.77.72 | 358763848 | 0 |
| 21.98.77.73 | 358763849 | 0 |
| 21.98.77.74 | 358763850 | 0 |
| 21.98.77.75 | 358763851 | 0 |
| 21.98.77.76 | 358763852 | 0 |
| 21.98.77.77 | 358763853 | 0 |
| 21.98.77.78 | 358763854 | 0 |
| 21.98.77.79 | 358763855 | 0 |
| 21.98.77.80 | 358763856 | 0 |
| 21.98.77.81 | 358763857 | 0 |
| 21.98.77.82 | 358763858 | 0 |
| 21.98.77.83 | 358763859 | 0 |
| 21.98.77.84 | 358763860 | 0 |
| 21.98.77.85 | 358763861 | 0 |