Les adresses IP débutant par 21.99.98 sont fournies par China Education and Research Network Center, elles appartiennent au CIDR (Classless Inter-Domain Routing) 22.30.204.0/23, le bloc IP comprant les adresses de 22.30.204.0 à 22.30.205.255). Le numéro de système autonome (ASN) est 4538.
| ASN | 4538 |
| IP commençant par | 22.30.204.0 |
| IP se terminant par | 22.30.205.255 |
| Nom ASN | China Education and Research Network Center |
| CDIR | 22.30.204.0/23 |
| IP numérique | |
| Registe | |
| Dernière mise à jour | 01/11/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | US | États-Unis | - | Columbus | 39,9664 | -83,0128 | 2017-11-01 |
| MaxMind | US | États-Unis | - | - | 37,751 | -97,822 | 2017-11-01 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.99.98.0 | 358834688 | 0 |
| 21.99.98.1 | 358834689 | 0 |
| 21.99.98.2 | 358834690 | 0 |
| 21.99.98.3 | 358834691 | 0 |
| 21.99.98.4 | 358834692 | 0 |
| 21.99.98.5 | 358834693 | 0 |
| 21.99.98.6 | 358834694 | 0 |
| 21.99.98.7 | 358834695 | 0 |
| 21.99.98.8 | 358834696 | 0 |
| 21.99.98.9 | 358834697 | 0 |
| 21.99.98.10 | 358834698 | 0 |
| 21.99.98.11 | 358834699 | 0 |
| 21.99.98.12 | 358834700 | 0 |
| 21.99.98.13 | 358834701 | 0 |
| 21.99.98.14 | 358834702 | 0 |
| 21.99.98.15 | 358834703 | 0 |
| 21.99.98.16 | 358834704 | 0 |
| 21.99.98.17 | 358834705 | 0 |
| 21.99.98.18 | 358834706 | 0 |
| 21.99.98.19 | 358834707 | 0 |
| 21.99.98.20 | 358834708 | 0 |
| 21.99.98.21 | 358834709 | 0 |
| 21.99.98.22 | 358834710 | 0 |
| 21.99.98.23 | 358834711 | 0 |
| 21.99.98.24 | 358834712 | 0 |
| 21.99.98.25 | 358834713 | 0 |
| 21.99.98.26 | 358834714 | 0 |
| 21.99.98.27 | 358834715 | 0 |
| 21.99.98.28 | 358834716 | 0 |
| 21.99.98.29 | 358834717 | 0 |
| 21.99.98.30 | 358834718 | 0 |
| 21.99.98.31 | 358834719 | 0 |
| 21.99.98.32 | 358834720 | 0 |
| 21.99.98.33 | 358834721 | 0 |
| 21.99.98.34 | 358834722 | 0 |
| 21.99.98.35 | 358834723 | 0 |
| 21.99.98.36 | 358834724 | 0 |
| 21.99.98.37 | 358834725 | 0 |
| 21.99.98.38 | 358834726 | 0 |
| 21.99.98.39 | 358834727 | 0 |
| 21.99.98.40 | 358834728 | 0 |
| 21.99.98.41 | 358834729 | 0 |
| 21.99.98.42 | 358834730 | 0 |
| 21.99.98.43 | 358834731 | 0 |
| 21.99.98.44 | 358834732 | 0 |
| 21.99.98.45 | 358834733 | 0 |
| 21.99.98.46 | 358834734 | 0 |
| 21.99.98.47 | 358834735 | 0 |
| 21.99.98.48 | 358834736 | 0 |
| 21.99.98.49 | 358834737 | 0 |
| 21.99.98.50 | 358834738 | 0 |
| 21.99.98.51 | 358834739 | 0 |
| 21.99.98.52 | 358834740 | 0 |
| 21.99.98.53 | 358834741 | 0 |
| 21.99.98.54 | 358834742 | 0 |
| 21.99.98.55 | 358834743 | 0 |
| 21.99.98.56 | 358834744 | 0 |
| 21.99.98.57 | 358834745 | 0 |
| 21.99.98.58 | 358834746 | 0 |
| 21.99.98.59 | 358834747 | 0 |
| 21.99.98.60 | 358834748 | 0 |
| 21.99.98.61 | 358834749 | 0 |
| 21.99.98.62 | 358834750 | 0 |
| 21.99.98.63 | 358834751 | 0 |
| 21.99.98.64 | 358834752 | 0 |
| 21.99.98.65 | 358834753 | 0 |
| 21.99.98.66 | 358834754 | 0 |
| 21.99.98.67 | 358834755 | 0 |
| 21.99.98.68 | 358834756 | 0 |
| 21.99.98.69 | 358834757 | 0 |
| 21.99.98.70 | 358834758 | 0 |
| 21.99.98.71 | 358834759 | 0 |
| 21.99.98.72 | 358834760 | 0 |
| 21.99.98.73 | 358834761 | 0 |
| 21.99.98.74 | 358834762 | 0 |
| 21.99.98.75 | 358834763 | 0 |
| 21.99.98.76 | 358834764 | 0 |
| 21.99.98.77 | 358834765 | 0 |
| 21.99.98.78 | 358834766 | 0 |
| 21.99.98.79 | 358834767 | 0 |
| 21.99.98.80 | 358834768 | 0 |
| 21.99.98.81 | 358834769 | 0 |
| 21.99.98.82 | 358834770 | 0 |
| 21.99.98.83 | 358834771 | 0 |
| 21.99.98.84 | 358834772 | 0 |
| 21.99.98.85 | 358834773 | 0 |