Die IP-Adresse 21.80.87 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 | 16.09.2017 |

| Vorwahl des Landes | Land | Region | Stadt | Breitengrad | Länge | Letztes update | |
| IP2Location | US | USA | - | Columbus | 39,9664 | -83,0128 | 2017-09-16 |
| MaxMind | US | USA | - | - | 37,751 | -97,822 | 2017-09-16 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.80.87.0 | 357586688 | 0 |
| 21.80.87.1 | 357586689 | 0 |
| 21.80.87.2 | 357586690 | 0 |
| 21.80.87.3 | 357586691 | 0 |
| 21.80.87.4 | 357586692 | 0 |
| 21.80.87.5 | 357586693 | 0 |
| 21.80.87.6 | 357586694 | 0 |
| 21.80.87.7 | 357586695 | 0 |
| 21.80.87.8 | 357586696 | 0 |
| 21.80.87.9 | 357586697 | 0 |
| 21.80.87.10 | 357586698 | 0 |
| 21.80.87.11 | 357586699 | 0 |
| 21.80.87.12 | 357586700 | 0 |
| 21.80.87.13 | 357586701 | 0 |
| 21.80.87.14 | 357586702 | 0 |
| 21.80.87.15 | 357586703 | 0 |
| 21.80.87.16 | 357586704 | 0 |
| 21.80.87.17 | 357586705 | 0 |
| 21.80.87.18 | 357586706 | 0 |
| 21.80.87.19 | 357586707 | 0 |
| 21.80.87.20 | 357586708 | 0 |
| 21.80.87.21 | 357586709 | 0 |
| 21.80.87.22 | 357586710 | 0 |
| 21.80.87.23 | 357586711 | 0 |
| 21.80.87.24 | 357586712 | 0 |
| 21.80.87.25 | 357586713 | 0 |
| 21.80.87.26 | 357586714 | 0 |
| 21.80.87.27 | 357586715 | 0 |
| 21.80.87.28 | 357586716 | 0 |
| 21.80.87.29 | 357586717 | 0 |
| 21.80.87.30 | 357586718 | 0 |
| 21.80.87.31 | 357586719 | 0 |
| 21.80.87.32 | 357586720 | 0 |
| 21.80.87.33 | 357586721 | 0 |
| 21.80.87.34 | 357586722 | 0 |
| 21.80.87.35 | 357586723 | 0 |
| 21.80.87.36 | 357586724 | 0 |
| 21.80.87.37 | 357586725 | 0 |
| 21.80.87.38 | 357586726 | 0 |
| 21.80.87.39 | 357586727 | 0 |
| 21.80.87.40 | 357586728 | 0 |
| 21.80.87.41 | 357586729 | 0 |
| 21.80.87.42 | 357586730 | 0 |
| 21.80.87.43 | 357586731 | 0 |
| 21.80.87.44 | 357586732 | 0 |
| 21.80.87.45 | 357586733 | 0 |
| 21.80.87.46 | 357586734 | 0 |
| 21.80.87.47 | 357586735 | 0 |
| 21.80.87.48 | 357586736 | 0 |
| 21.80.87.49 | 357586737 | 0 |
| 21.80.87.50 | 357586738 | 0 |
| 21.80.87.51 | 357586739 | 0 |
| 21.80.87.52 | 357586740 | 0 |
| 21.80.87.53 | 357586741 | 0 |
| 21.80.87.54 | 357586742 | 0 |
| 21.80.87.55 | 357586743 | 0 |
| 21.80.87.56 | 357586744 | 0 |
| 21.80.87.57 | 357586745 | 0 |
| 21.80.87.58 | 357586746 | 0 |
| 21.80.87.59 | 357586747 | 0 |
| 21.80.87.60 | 357586748 | 0 |
| 21.80.87.61 | 357586749 | 0 |
| 21.80.87.62 | 357586750 | 0 |
| 21.80.87.63 | 357586751 | 0 |
| 21.80.87.64 | 357586752 | 0 |
| 21.80.87.65 | 357586753 | 0 |
| 21.80.87.66 | 357586754 | 0 |
| 21.80.87.67 | 357586755 | 0 |
| 21.80.87.68 | 357586756 | 0 |
| 21.80.87.69 | 357586757 | 0 |
| 21.80.87.70 | 357586758 | 0 |
| 21.80.87.71 | 357586759 | 0 |
| 21.80.87.72 | 357586760 | 0 |
| 21.80.87.73 | 357586761 | 0 |
| 21.80.87.74 | 357586762 | 0 |
| 21.80.87.75 | 357586763 | 0 |
| 21.80.87.76 | 357586764 | 0 |
| 21.80.87.77 | 357586765 | 0 |
| 21.80.87.78 | 357586766 | 0 |
| 21.80.87.79 | 357586767 | 0 |
| 21.80.87.80 | 357586768 | 0 |
| 21.80.87.81 | 357586769 | 0 |
| 21.80.87.82 | 357586770 | 0 |
| 21.80.87.83 | 357586771 | 0 |
| 21.80.87.84 | 357586772 | 0 |
| 21.80.87.85 | 357586773 | 0 |