La dirección IP 21.72.45 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 | 05/11/2017 |

| Código País | País | Región | Ciudad | Latitud | Longitud | Última actualización | |
| IP2Location | US | Estados Unidos | - | Columbus | 39,9664 | -83,0128 | 2017-11-05 |
| MaxMind | US | Estados Unidos | - | - | 37,751 | -97,822 | 2017-11-05 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.72.45.0 | 357051648 | 0 |
| 21.72.45.1 | 357051649 | 0 |
| 21.72.45.2 | 357051650 | 0 |
| 21.72.45.3 | 357051651 | 0 |
| 21.72.45.4 | 357051652 | 0 |
| 21.72.45.5 | 357051653 | 0 |
| 21.72.45.6 | 357051654 | 0 |
| 21.72.45.7 | 357051655 | 0 |
| 21.72.45.8 | 357051656 | 0 |
| 21.72.45.9 | 357051657 | 0 |
| 21.72.45.10 | 357051658 | 0 |
| 21.72.45.11 | 357051659 | 0 |
| 21.72.45.12 | 357051660 | 0 |
| 21.72.45.13 | 357051661 | 0 |
| 21.72.45.14 | 357051662 | 0 |
| 21.72.45.15 | 357051663 | 0 |
| 21.72.45.16 | 357051664 | 0 |
| 21.72.45.17 | 357051665 | 0 |
| 21.72.45.18 | 357051666 | 0 |
| 21.72.45.19 | 357051667 | 0 |
| 21.72.45.20 | 357051668 | 0 |
| 21.72.45.21 | 357051669 | 0 |
| 21.72.45.22 | 357051670 | 0 |
| 21.72.45.23 | 357051671 | 0 |
| 21.72.45.24 | 357051672 | 0 |
| 21.72.45.25 | 357051673 | 0 |
| 21.72.45.26 | 357051674 | 0 |
| 21.72.45.27 | 357051675 | 0 |
| 21.72.45.28 | 357051676 | 0 |
| 21.72.45.29 | 357051677 | 0 |
| 21.72.45.30 | 357051678 | 0 |
| 21.72.45.31 | 357051679 | 0 |
| 21.72.45.32 | 357051680 | 0 |
| 21.72.45.33 | 357051681 | 0 |
| 21.72.45.34 | 357051682 | 0 |
| 21.72.45.35 | 357051683 | 0 |
| 21.72.45.36 | 357051684 | 0 |
| 21.72.45.37 | 357051685 | 0 |
| 21.72.45.38 | 357051686 | 0 |
| 21.72.45.39 | 357051687 | 0 |
| 21.72.45.40 | 357051688 | 0 |
| 21.72.45.41 | 357051689 | 0 |
| 21.72.45.42 | 357051690 | 0 |
| 21.72.45.43 | 357051691 | 0 |
| 21.72.45.44 | 357051692 | 0 |
| 21.72.45.45 | 357051693 | 0 |
| 21.72.45.46 | 357051694 | 0 |
| 21.72.45.47 | 357051695 | 0 |
| 21.72.45.48 | 357051696 | 0 |
| 21.72.45.49 | 357051697 | 0 |
| 21.72.45.50 | 357051698 | 0 |
| 21.72.45.51 | 357051699 | 0 |
| 21.72.45.52 | 357051700 | 0 |
| 21.72.45.53 | 357051701 | 0 |
| 21.72.45.54 | 357051702 | 0 |
| 21.72.45.55 | 357051703 | 0 |
| 21.72.45.56 | 357051704 | 0 |
| 21.72.45.57 | 357051705 | 0 |
| 21.72.45.58 | 357051706 | 0 |
| 21.72.45.59 | 357051707 | 0 |
| 21.72.45.60 | 357051708 | 0 |
| 21.72.45.61 | 357051709 | 0 |
| 21.72.45.62 | 357051710 | 0 |
| 21.72.45.63 | 357051711 | 0 |
| 21.72.45.64 | 357051712 | 0 |
| 21.72.45.65 | 357051713 | 0 |
| 21.72.45.66 | 357051714 | 0 |
| 21.72.45.67 | 357051715 | 0 |
| 21.72.45.68 | 357051716 | 0 |
| 21.72.45.69 | 357051717 | 0 |
| 21.72.45.70 | 357051718 | 0 |
| 21.72.45.71 | 357051719 | 0 |
| 21.72.45.72 | 357051720 | 0 |
| 21.72.45.73 | 357051721 | 0 |
| 21.72.45.74 | 357051722 | 0 |
| 21.72.45.75 | 357051723 | 0 |
| 21.72.45.76 | 357051724 | 0 |
| 21.72.45.77 | 357051725 | 0 |
| 21.72.45.78 | 357051726 | 0 |
| 21.72.45.79 | 357051727 | 0 |
| 21.72.45.80 | 357051728 | 0 |
| 21.72.45.81 | 357051729 | 0 |
| 21.72.45.82 | 357051730 | 0 |
| 21.72.45.83 | 357051731 | 0 |
| 21.72.45.84 | 357051732 | 0 |
| 21.72.45.85 | 357051733 | 0 |