La dirección IP 21.87.45 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 | 16/08/2017 |

| Código País | País | Región | Ciudad | Latitud | Longitud | Última actualización | |
| IP2Location | US | Estados Unidos | - | Columbus | 39,9664 | -83,0128 | 2017-08-16 |
| MaxMind | US | Estados Unidos | - | - | 37,751 | -97,822 | 2017-08-16 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.87.45.0 | 358034688 | 0 |
| 21.87.45.1 | 358034689 | 0 |
| 21.87.45.2 | 358034690 | 0 |
| 21.87.45.3 | 358034691 | 0 |
| 21.87.45.4 | 358034692 | 0 |
| 21.87.45.5 | 358034693 | 0 |
| 21.87.45.6 | 358034694 | 0 |
| 21.87.45.7 | 358034695 | 0 |
| 21.87.45.8 | 358034696 | 0 |
| 21.87.45.9 | 358034697 | 0 |
| 21.87.45.10 | 358034698 | 0 |
| 21.87.45.11 | 358034699 | 0 |
| 21.87.45.12 | 358034700 | 0 |
| 21.87.45.13 | 358034701 | 0 |
| 21.87.45.14 | 358034702 | 0 |
| 21.87.45.15 | 358034703 | 0 |
| 21.87.45.16 | 358034704 | 0 |
| 21.87.45.17 | 358034705 | 0 |
| 21.87.45.18 | 358034706 | 0 |
| 21.87.45.19 | 358034707 | 0 |
| 21.87.45.20 | 358034708 | 0 |
| 21.87.45.21 | 358034709 | 0 |
| 21.87.45.22 | 358034710 | 0 |
| 21.87.45.23 | 358034711 | 0 |
| 21.87.45.24 | 358034712 | 0 |
| 21.87.45.25 | 358034713 | 0 |
| 21.87.45.26 | 358034714 | 0 |
| 21.87.45.27 | 358034715 | 0 |
| 21.87.45.28 | 358034716 | 0 |
| 21.87.45.29 | 358034717 | 0 |
| 21.87.45.30 | 358034718 | 0 |
| 21.87.45.31 | 358034719 | 0 |
| 21.87.45.32 | 358034720 | 0 |
| 21.87.45.33 | 358034721 | 0 |
| 21.87.45.34 | 358034722 | 0 |
| 21.87.45.35 | 358034723 | 0 |
| 21.87.45.36 | 358034724 | 0 |
| 21.87.45.37 | 358034725 | 0 |
| 21.87.45.38 | 358034726 | 0 |
| 21.87.45.39 | 358034727 | 0 |
| 21.87.45.40 | 358034728 | 0 |
| 21.87.45.41 | 358034729 | 0 |
| 21.87.45.42 | 358034730 | 0 |
| 21.87.45.43 | 358034731 | 0 |
| 21.87.45.44 | 358034732 | 0 |
| 21.87.45.45 | 358034733 | 0 |
| 21.87.45.46 | 358034734 | 0 |
| 21.87.45.47 | 358034735 | 0 |
| 21.87.45.48 | 358034736 | 0 |
| 21.87.45.49 | 358034737 | 0 |
| 21.87.45.50 | 358034738 | 0 |
| 21.87.45.51 | 358034739 | 0 |
| 21.87.45.52 | 358034740 | 0 |
| 21.87.45.53 | 358034741 | 0 |
| 21.87.45.54 | 358034742 | 0 |
| 21.87.45.55 | 358034743 | 0 |
| 21.87.45.56 | 358034744 | 0 |
| 21.87.45.57 | 358034745 | 0 |
| 21.87.45.58 | 358034746 | 0 |
| 21.87.45.59 | 358034747 | 0 |
| 21.87.45.60 | 358034748 | 0 |
| 21.87.45.61 | 358034749 | 0 |
| 21.87.45.62 | 358034750 | 0 |
| 21.87.45.63 | 358034751 | 0 |
| 21.87.45.64 | 358034752 | 0 |
| 21.87.45.65 | 358034753 | 0 |
| 21.87.45.66 | 358034754 | 0 |
| 21.87.45.67 | 358034755 | 0 |
| 21.87.45.68 | 358034756 | 0 |
| 21.87.45.69 | 358034757 | 0 |
| 21.87.45.70 | 358034758 | 0 |
| 21.87.45.71 | 358034759 | 0 |
| 21.87.45.72 | 358034760 | 0 |
| 21.87.45.73 | 358034761 | 0 |
| 21.87.45.74 | 358034762 | 0 |
| 21.87.45.75 | 358034763 | 0 |
| 21.87.45.76 | 358034764 | 0 |
| 21.87.45.77 | 358034765 | 0 |
| 21.87.45.78 | 358034766 | 0 |
| 21.87.45.79 | 358034767 | 0 |
| 21.87.45.80 | 358034768 | 0 |
| 21.87.45.81 | 358034769 | 0 |
| 21.87.45.82 | 358034770 | 0 |
| 21.87.45.83 | 358034771 | 0 |
| 21.87.45.84 | 358034772 | 0 |
| 21.87.45.85 | 358034773 | 0 |