Die IP-Adresse 21.76.64 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 | 27.09.2017 |

| Vorwahl des Landes | Land | Region | Stadt | Breitengrad | Länge | Letztes update | |
| IP2Location | US | USA | - | Columbus | 39,9664 | -83,0128 | 2017-09-26 |
| MaxMind | US | USA | - | - | 37,751 | -97,822 | 2017-09-26 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.76.64.0 | 357318656 | 0 |
| 21.76.64.1 | 357318657 | 0 |
| 21.76.64.2 | 357318658 | 0 |
| 21.76.64.3 | 357318659 | 0 |
| 21.76.64.4 | 357318660 | 0 |
| 21.76.64.5 | 357318661 | 0 |
| 21.76.64.6 | 357318662 | 0 |
| 21.76.64.7 | 357318663 | 0 |
| 21.76.64.8 | 357318664 | 0 |
| 21.76.64.9 | 357318665 | 0 |
| 21.76.64.10 | 357318666 | 0 |
| 21.76.64.11 | 357318667 | 0 |
| 21.76.64.12 | 357318668 | 0 |
| 21.76.64.13 | 357318669 | 0 |
| 21.76.64.14 | 357318670 | 0 |
| 21.76.64.15 | 357318671 | 0 |
| 21.76.64.16 | 357318672 | 0 |
| 21.76.64.17 | 357318673 | 0 |
| 21.76.64.18 | 357318674 | 0 |
| 21.76.64.19 | 357318675 | 0 |
| 21.76.64.20 | 357318676 | 0 |
| 21.76.64.21 | 357318677 | 0 |
| 21.76.64.22 | 357318678 | 0 |
| 21.76.64.23 | 357318679 | 0 |
| 21.76.64.24 | 357318680 | 0 |
| 21.76.64.25 | 357318681 | 0 |
| 21.76.64.26 | 357318682 | 0 |
| 21.76.64.27 | 357318683 | 0 |
| 21.76.64.28 | 357318684 | 0 |
| 21.76.64.29 | 357318685 | 0 |
| 21.76.64.30 | 357318686 | 0 |
| 21.76.64.31 | 357318687 | 0 |
| 21.76.64.32 | 357318688 | 0 |
| 21.76.64.33 | 357318689 | 0 |
| 21.76.64.34 | 357318690 | 0 |
| 21.76.64.35 | 357318691 | 0 |
| 21.76.64.36 | 357318692 | 0 |
| 21.76.64.37 | 357318693 | 0 |
| 21.76.64.38 | 357318694 | 0 |
| 21.76.64.39 | 357318695 | 0 |
| 21.76.64.40 | 357318696 | 0 |
| 21.76.64.41 | 357318697 | 0 |
| 21.76.64.42 | 357318698 | 0 |
| 21.76.64.43 | 357318699 | 0 |
| 21.76.64.44 | 357318700 | 0 |
| 21.76.64.45 | 357318701 | 0 |
| 21.76.64.46 | 357318702 | 0 |
| 21.76.64.47 | 357318703 | 0 |
| 21.76.64.48 | 357318704 | 0 |
| 21.76.64.49 | 357318705 | 0 |
| 21.76.64.50 | 357318706 | 0 |
| 21.76.64.51 | 357318707 | 0 |
| 21.76.64.52 | 357318708 | 0 |
| 21.76.64.53 | 357318709 | 0 |
| 21.76.64.54 | 357318710 | 0 |
| 21.76.64.55 | 357318711 | 0 |
| 21.76.64.56 | 357318712 | 0 |
| 21.76.64.57 | 357318713 | 0 |
| 21.76.64.58 | 357318714 | 0 |
| 21.76.64.59 | 357318715 | 0 |
| 21.76.64.60 | 357318716 | 0 |
| 21.76.64.61 | 357318717 | 0 |
| 21.76.64.62 | 357318718 | 0 |
| 21.76.64.63 | 357318719 | 0 |
| 21.76.64.64 | 357318720 | 0 |
| 21.76.64.65 | 357318721 | 0 |
| 21.76.64.66 | 357318722 | 0 |
| 21.76.64.67 | 357318723 | 0 |
| 21.76.64.68 | 357318724 | 0 |
| 21.76.64.69 | 357318725 | 0 |
| 21.76.64.70 | 357318726 | 0 |
| 21.76.64.71 | 357318727 | 0 |
| 21.76.64.72 | 357318728 | 0 |
| 21.76.64.73 | 357318729 | 0 |
| 21.76.64.74 | 357318730 | 0 |
| 21.76.64.75 | 357318731 | 0 |
| 21.76.64.76 | 357318732 | 0 |
| 21.76.64.77 | 357318733 | 0 |
| 21.76.64.78 | 357318734 | 0 |
| 21.76.64.79 | 357318735 | 0 |
| 21.76.64.80 | 357318736 | 0 |
| 21.76.64.81 | 357318737 | 0 |
| 21.76.64.82 | 357318738 | 0 |
| 21.76.64.83 | 357318739 | 0 |
| 21.76.64.84 | 357318740 | 0 |
| 21.76.64.85 | 357318741 | 0 |