L'indirizzo IP 21.93.91 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 | 12/10/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | US | United States | - | Columbus | 39,9664 | -83,0128 | 2017-10-12 |
| MaxMind | US | United States | - | - | 37,751 | -97,822 | 2017-10-12 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.93.91.0 | 358439680 | 0 |
| 21.93.91.1 | 358439681 | 0 |
| 21.93.91.2 | 358439682 | 0 |
| 21.93.91.3 | 358439683 | 0 |
| 21.93.91.4 | 358439684 | 0 |
| 21.93.91.5 | 358439685 | 0 |
| 21.93.91.6 | 358439686 | 0 |
| 21.93.91.7 | 358439687 | 0 |
| 21.93.91.8 | 358439688 | 0 |
| 21.93.91.9 | 358439689 | 0 |
| 21.93.91.10 | 358439690 | 0 |
| 21.93.91.11 | 358439691 | 0 |
| 21.93.91.12 | 358439692 | 0 |
| 21.93.91.13 | 358439693 | 0 |
| 21.93.91.14 | 358439694 | 0 |
| 21.93.91.15 | 358439695 | 0 |
| 21.93.91.16 | 358439696 | 0 |
| 21.93.91.17 | 358439697 | 0 |
| 21.93.91.18 | 358439698 | 0 |
| 21.93.91.19 | 358439699 | 0 |
| 21.93.91.20 | 358439700 | 0 |
| 21.93.91.21 | 358439701 | 0 |
| 21.93.91.22 | 358439702 | 0 |
| 21.93.91.23 | 358439703 | 0 |
| 21.93.91.24 | 358439704 | 0 |
| 21.93.91.25 | 358439705 | 0 |
| 21.93.91.26 | 358439706 | 0 |
| 21.93.91.27 | 358439707 | 0 |
| 21.93.91.28 | 358439708 | 0 |
| 21.93.91.29 | 358439709 | 0 |
| 21.93.91.30 | 358439710 | 0 |
| 21.93.91.31 | 358439711 | 0 |
| 21.93.91.32 | 358439712 | 0 |
| 21.93.91.33 | 358439713 | 0 |
| 21.93.91.34 | 358439714 | 0 |
| 21.93.91.35 | 358439715 | 0 |
| 21.93.91.36 | 358439716 | 0 |
| 21.93.91.37 | 358439717 | 0 |
| 21.93.91.38 | 358439718 | 0 |
| 21.93.91.39 | 358439719 | 0 |
| 21.93.91.40 | 358439720 | 0 |
| 21.93.91.41 | 358439721 | 0 |
| 21.93.91.42 | 358439722 | 0 |
| 21.93.91.43 | 358439723 | 0 |
| 21.93.91.44 | 358439724 | 0 |
| 21.93.91.45 | 358439725 | 0 |
| 21.93.91.46 | 358439726 | 0 |
| 21.93.91.47 | 358439727 | 0 |
| 21.93.91.48 | 358439728 | 0 |
| 21.93.91.49 | 358439729 | 0 |
| 21.93.91.50 | 358439730 | 0 |
| 21.93.91.51 | 358439731 | 0 |
| 21.93.91.52 | 358439732 | 0 |
| 21.93.91.53 | 358439733 | 0 |
| 21.93.91.54 | 358439734 | 0 |
| 21.93.91.55 | 358439735 | 0 |
| 21.93.91.56 | 358439736 | 0 |
| 21.93.91.57 | 358439737 | 0 |
| 21.93.91.58 | 358439738 | 0 |
| 21.93.91.59 | 358439739 | 0 |
| 21.93.91.60 | 358439740 | 0 |
| 21.93.91.61 | 358439741 | 0 |
| 21.93.91.62 | 358439742 | 0 |
| 21.93.91.63 | 358439743 | 0 |
| 21.93.91.64 | 358439744 | 0 |
| 21.93.91.65 | 358439745 | 0 |
| 21.93.91.66 | 358439746 | 0 |
| 21.93.91.67 | 358439747 | 0 |
| 21.93.91.68 | 358439748 | 0 |
| 21.93.91.69 | 358439749 | 0 |
| 21.93.91.70 | 358439750 | 0 |
| 21.93.91.71 | 358439751 | 0 |
| 21.93.91.72 | 358439752 | 0 |
| 21.93.91.73 | 358439753 | 0 |
| 21.93.91.74 | 358439754 | 0 |
| 21.93.91.75 | 358439755 | 0 |
| 21.93.91.76 | 358439756 | 0 |
| 21.93.91.77 | 358439757 | 0 |
| 21.93.91.78 | 358439758 | 0 |
| 21.93.91.79 | 358439759 | 0 |
| 21.93.91.80 | 358439760 | 0 |
| 21.93.91.81 | 358439761 | 0 |
| 21.93.91.82 | 358439762 | 0 |
| 21.93.91.83 | 358439763 | 0 |
| 21.93.91.84 | 358439764 | 0 |
| 21.93.91.85 | 358439765 | 0 |