Die IP-Adresse 21.76.72 erfolgt über China Education and Research Network Center, es hat gehören zu den GGDV (Classless Inter-Domain Routing) 22.30.204.0/23 (Bereich 22.30.204.0, 22.30.205.255). Die autonomen Systemnummer (ASN) ist 4538.
| ASN | 4538 |
| Ausgehend von IP | 22.30.204.0 |
| Beendigung durch IP | 22.30.205.255 |
| ASN-Namen | China Education and Research Network Center |
| GGDV | 22.30.204.0/23 |
| Numerische IP | |
| Registrierung | |
| Letztes update | 11.11.2017 |

| Vorwahl des Landes | Land | Region | Stadt | Breitengrad | Länge | Letztes update | |
| IP2Location | US | USA | - | Columbus | 39,9664 | -83,0128 | 2017-11-11 |
| MaxMind | US | USA | - | - | 37,751 | -97,822 | 2017-11-11 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.76.72.0 | 357320704 | 0 |
| 21.76.72.1 | 357320705 | 0 |
| 21.76.72.2 | 357320706 | 0 |
| 21.76.72.3 | 357320707 | 0 |
| 21.76.72.4 | 357320708 | 0 |
| 21.76.72.5 | 357320709 | 0 |
| 21.76.72.6 | 357320710 | 0 |
| 21.76.72.7 | 357320711 | 0 |
| 21.76.72.8 | 357320712 | 0 |
| 21.76.72.9 | 357320713 | 0 |
| 21.76.72.10 | 357320714 | 0 |
| 21.76.72.11 | 357320715 | 0 |
| 21.76.72.12 | 357320716 | 0 |
| 21.76.72.13 | 357320717 | 0 |
| 21.76.72.14 | 357320718 | 0 |
| 21.76.72.15 | 357320719 | 0 |
| 21.76.72.16 | 357320720 | 0 |
| 21.76.72.17 | 357320721 | 0 |
| 21.76.72.18 | 357320722 | 0 |
| 21.76.72.19 | 357320723 | 0 |
| 21.76.72.20 | 357320724 | 0 |
| 21.76.72.21 | 357320725 | 0 |
| 21.76.72.22 | 357320726 | 0 |
| 21.76.72.23 | 357320727 | 0 |
| 21.76.72.24 | 357320728 | 0 |
| 21.76.72.25 | 357320729 | 0 |
| 21.76.72.26 | 357320730 | 0 |
| 21.76.72.27 | 357320731 | 0 |
| 21.76.72.28 | 357320732 | 0 |
| 21.76.72.29 | 357320733 | 0 |
| 21.76.72.30 | 357320734 | 0 |
| 21.76.72.31 | 357320735 | 0 |
| 21.76.72.32 | 357320736 | 0 |
| 21.76.72.33 | 357320737 | 0 |
| 21.76.72.34 | 357320738 | 0 |
| 21.76.72.35 | 357320739 | 0 |
| 21.76.72.36 | 357320740 | 0 |
| 21.76.72.37 | 357320741 | 0 |
| 21.76.72.38 | 357320742 | 0 |
| 21.76.72.39 | 357320743 | 0 |
| 21.76.72.40 | 357320744 | 0 |
| 21.76.72.41 | 357320745 | 0 |
| 21.76.72.42 | 357320746 | 0 |
| 21.76.72.43 | 357320747 | 0 |
| 21.76.72.44 | 357320748 | 0 |
| 21.76.72.45 | 357320749 | 0 |
| 21.76.72.46 | 357320750 | 0 |
| 21.76.72.47 | 357320751 | 0 |
| 21.76.72.48 | 357320752 | 0 |
| 21.76.72.49 | 357320753 | 0 |
| 21.76.72.50 | 357320754 | 0 |
| 21.76.72.51 | 357320755 | 0 |
| 21.76.72.52 | 357320756 | 0 |
| 21.76.72.53 | 357320757 | 0 |
| 21.76.72.54 | 357320758 | 0 |
| 21.76.72.55 | 357320759 | 0 |
| 21.76.72.56 | 357320760 | 0 |
| 21.76.72.57 | 357320761 | 0 |
| 21.76.72.58 | 357320762 | 0 |
| 21.76.72.59 | 357320763 | 0 |
| 21.76.72.60 | 357320764 | 0 |
| 21.76.72.61 | 357320765 | 0 |
| 21.76.72.62 | 357320766 | 0 |
| 21.76.72.63 | 357320767 | 0 |
| 21.76.72.64 | 357320768 | 0 |
| 21.76.72.65 | 357320769 | 0 |
| 21.76.72.66 | 357320770 | 0 |
| 21.76.72.67 | 357320771 | 0 |
| 21.76.72.68 | 357320772 | 0 |
| 21.76.72.69 | 357320773 | 0 |
| 21.76.72.70 | 357320774 | 0 |
| 21.76.72.71 | 357320775 | 0 |
| 21.76.72.72 | 357320776 | 0 |
| 21.76.72.73 | 357320777 | 0 |
| 21.76.72.74 | 357320778 | 0 |
| 21.76.72.75 | 357320779 | 0 |
| 21.76.72.76 | 357320780 | 0 |
| 21.76.72.77 | 357320781 | 0 |
| 21.76.72.78 | 357320782 | 0 |
| 21.76.72.79 | 357320783 | 0 |
| 21.76.72.80 | 357320784 | 0 |
| 21.76.72.81 | 357320785 | 0 |
| 21.76.72.82 | 357320786 | 0 |
| 21.76.72.83 | 357320787 | 0 |
| 21.76.72.84 | 357320788 | 0 |
| 21.76.72.85 | 357320789 | 0 |