L'indirizzo IP 21.78.99 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 | 05/01/2018 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | US | United States | - | Columbus | 39,9664 | -83,0128 | 2018-01-04 |
| MaxMind | US | United States | - | - | 37,751 | -97,822 | 2018-01-04 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.78.99.0 | 357458688 | 0 |
| 21.78.99.1 | 357458689 | 0 |
| 21.78.99.2 | 357458690 | 0 |
| 21.78.99.3 | 357458691 | 0 |
| 21.78.99.4 | 357458692 | 0 |
| 21.78.99.5 | 357458693 | 0 |
| 21.78.99.6 | 357458694 | 0 |
| 21.78.99.7 | 357458695 | 0 |
| 21.78.99.8 | 357458696 | 0 |
| 21.78.99.9 | 357458697 | 0 |
| 21.78.99.10 | 357458698 | 0 |
| 21.78.99.11 | 357458699 | 0 |
| 21.78.99.12 | 357458700 | 0 |
| 21.78.99.13 | 357458701 | 0 |
| 21.78.99.14 | 357458702 | 0 |
| 21.78.99.15 | 357458703 | 0 |
| 21.78.99.16 | 357458704 | 0 |
| 21.78.99.17 | 357458705 | 0 |
| 21.78.99.18 | 357458706 | 0 |
| 21.78.99.19 | 357458707 | 0 |
| 21.78.99.20 | 357458708 | 0 |
| 21.78.99.21 | 357458709 | 0 |
| 21.78.99.22 | 357458710 | 0 |
| 21.78.99.23 | 357458711 | 0 |
| 21.78.99.24 | 357458712 | 0 |
| 21.78.99.25 | 357458713 | 0 |
| 21.78.99.26 | 357458714 | 0 |
| 21.78.99.27 | 357458715 | 0 |
| 21.78.99.28 | 357458716 | 0 |
| 21.78.99.29 | 357458717 | 0 |
| 21.78.99.30 | 357458718 | 0 |
| 21.78.99.31 | 357458719 | 0 |
| 21.78.99.32 | 357458720 | 0 |
| 21.78.99.33 | 357458721 | 0 |
| 21.78.99.34 | 357458722 | 0 |
| 21.78.99.35 | 357458723 | 0 |
| 21.78.99.36 | 357458724 | 0 |
| 21.78.99.37 | 357458725 | 0 |
| 21.78.99.38 | 357458726 | 0 |
| 21.78.99.39 | 357458727 | 0 |
| 21.78.99.40 | 357458728 | 0 |
| 21.78.99.41 | 357458729 | 0 |
| 21.78.99.42 | 357458730 | 0 |
| 21.78.99.43 | 357458731 | 0 |
| 21.78.99.44 | 357458732 | 0 |
| 21.78.99.45 | 357458733 | 0 |
| 21.78.99.46 | 357458734 | 0 |
| 21.78.99.47 | 357458735 | 0 |
| 21.78.99.48 | 357458736 | 0 |
| 21.78.99.49 | 357458737 | 0 |
| 21.78.99.50 | 357458738 | 0 |
| 21.78.99.51 | 357458739 | 0 |
| 21.78.99.52 | 357458740 | 0 |
| 21.78.99.53 | 357458741 | 0 |
| 21.78.99.54 | 357458742 | 0 |
| 21.78.99.55 | 357458743 | 0 |
| 21.78.99.56 | 357458744 | 0 |
| 21.78.99.57 | 357458745 | 0 |
| 21.78.99.58 | 357458746 | 0 |
| 21.78.99.59 | 357458747 | 0 |
| 21.78.99.60 | 357458748 | 0 |
| 21.78.99.61 | 357458749 | 0 |
| 21.78.99.62 | 357458750 | 0 |
| 21.78.99.63 | 357458751 | 0 |
| 21.78.99.64 | 357458752 | 0 |
| 21.78.99.65 | 357458753 | 0 |
| 21.78.99.66 | 357458754 | 0 |
| 21.78.99.67 | 357458755 | 0 |
| 21.78.99.68 | 357458756 | 0 |
| 21.78.99.69 | 357458757 | 0 |
| 21.78.99.70 | 357458758 | 0 |
| 21.78.99.71 | 357458759 | 0 |
| 21.78.99.72 | 357458760 | 0 |
| 21.78.99.73 | 357458761 | 0 |
| 21.78.99.74 | 357458762 | 0 |
| 21.78.99.75 | 357458763 | 0 |
| 21.78.99.76 | 357458764 | 0 |
| 21.78.99.77 | 357458765 | 0 |
| 21.78.99.78 | 357458766 | 0 |
| 21.78.99.79 | 357458767 | 0 |
| 21.78.99.80 | 357458768 | 0 |
| 21.78.99.81 | 357458769 | 0 |
| 21.78.99.82 | 357458770 | 0 |
| 21.78.99.83 | 357458771 | 0 |
| 21.78.99.84 | 357458772 | 0 |
| 21.78.99.85 | 357458773 | 0 |