La dirección IP 21.239.4 es proporcionada por China Education and Research Network Center, que es propiedad de la CIDR (Classless Inter-Domain Routing) 22.30.204.0/23, IP entre 22.30.204.0 a 22.30.205.255 ). El número de sistema autónomo (ASN) es 4538.
| ASN | 4538 |
| IP que comienzan con | 22.30.204.0 |
| IP que termina con | 22.30.205.255 |
| ASN Nombre | China Education and Research Network Center |
| CDIR | 22.30.204.0/23 |
| IP numérica | |
| Registe | |
| Última actualización | 22/01/2018 |

| Código País | País | Región | Ciudad | Latitud | Longitud | Última actualización | |
| IP2Location | US | Estados Unidos | - | Columbus | 39,9664 | -83,0128 | 2018-01-21 |
| MaxMind | US | Estados Unidos | - | - | 37,751 | -97,822 | 2018-01-21 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.239.4.0 | 367985664 | 0 |
| 21.239.4.1 | 367985665 | 0 |
| 21.239.4.2 | 367985666 | 0 |
| 21.239.4.3 | 367985667 | 0 |
| 21.239.4.4 | 367985668 | 0 |
| 21.239.4.5 | 367985669 | 0 |
| 21.239.4.6 | 367985670 | 0 |
| 21.239.4.7 | 367985671 | 0 |
| 21.239.4.8 | 367985672 | 0 |
| 21.239.4.9 | 367985673 | 0 |
| 21.239.4.10 | 367985674 | 0 |
| 21.239.4.11 | 367985675 | 0 |
| 21.239.4.12 | 367985676 | 0 |
| 21.239.4.13 | 367985677 | 0 |
| 21.239.4.14 | 367985678 | 0 |
| 21.239.4.15 | 367985679 | 0 |
| 21.239.4.16 | 367985680 | 0 |
| 21.239.4.17 | 367985681 | 0 |
| 21.239.4.18 | 367985682 | 0 |
| 21.239.4.19 | 367985683 | 0 |
| 21.239.4.20 | 367985684 | 0 |
| 21.239.4.21 | 367985685 | 0 |
| 21.239.4.22 | 367985686 | 0 |
| 21.239.4.23 | 367985687 | 0 |
| 21.239.4.24 | 367985688 | 0 |
| 21.239.4.25 | 367985689 | 0 |
| 21.239.4.26 | 367985690 | 0 |
| 21.239.4.27 | 367985691 | 0 |
| 21.239.4.28 | 367985692 | 0 |
| 21.239.4.29 | 367985693 | 0 |
| 21.239.4.30 | 367985694 | 0 |
| 21.239.4.31 | 367985695 | 0 |
| 21.239.4.32 | 367985696 | 0 |
| 21.239.4.33 | 367985697 | 0 |
| 21.239.4.34 | 367985698 | 0 |
| 21.239.4.35 | 367985699 | 0 |
| 21.239.4.36 | 367985700 | 0 |
| 21.239.4.37 | 367985701 | 0 |
| 21.239.4.38 | 367985702 | 0 |
| 21.239.4.39 | 367985703 | 0 |
| 21.239.4.40 | 367985704 | 0 |
| 21.239.4.41 | 367985705 | 0 |
| 21.239.4.42 | 367985706 | 0 |
| 21.239.4.43 | 367985707 | 0 |
| 21.239.4.44 | 367985708 | 0 |
| 21.239.4.45 | 367985709 | 0 |
| 21.239.4.46 | 367985710 | 0 |
| 21.239.4.47 | 367985711 | 0 |
| 21.239.4.48 | 367985712 | 0 |
| 21.239.4.49 | 367985713 | 0 |
| 21.239.4.50 | 367985714 | 0 |
| 21.239.4.51 | 367985715 | 0 |
| 21.239.4.52 | 367985716 | 0 |
| 21.239.4.53 | 367985717 | 0 |
| 21.239.4.54 | 367985718 | 0 |
| 21.239.4.55 | 367985719 | 0 |
| 21.239.4.56 | 367985720 | 0 |
| 21.239.4.57 | 367985721 | 0 |
| 21.239.4.58 | 367985722 | 0 |
| 21.239.4.59 | 367985723 | 0 |
| 21.239.4.60 | 367985724 | 0 |
| 21.239.4.61 | 367985725 | 0 |
| 21.239.4.62 | 367985726 | 0 |
| 21.239.4.63 | 367985727 | 0 |
| 21.239.4.64 | 367985728 | 0 |
| 21.239.4.65 | 367985729 | 0 |
| 21.239.4.66 | 367985730 | 0 |
| 21.239.4.67 | 367985731 | 0 |
| 21.239.4.68 | 367985732 | 0 |
| 21.239.4.69 | 367985733 | 0 |
| 21.239.4.70 | 367985734 | 0 |
| 21.239.4.71 | 367985735 | 0 |
| 21.239.4.72 | 367985736 | 0 |
| 21.239.4.73 | 367985737 | 0 |
| 21.239.4.74 | 367985738 | 0 |
| 21.239.4.75 | 367985739 | 0 |
| 21.239.4.76 | 367985740 | 0 |
| 21.239.4.77 | 367985741 | 0 |
| 21.239.4.78 | 367985742 | 0 |
| 21.239.4.79 | 367985743 | 0 |
| 21.239.4.80 | 367985744 | 0 |
| 21.239.4.81 | 367985745 | 0 |
| 21.239.4.82 | 367985746 | 0 |
| 21.239.4.83 | 367985747 | 0 |
| 21.239.4.84 | 367985748 | 0 |
| 21.239.4.85 | 367985749 | 0 |