The IP address 21.99.55 is provided by China Education and Research Network Center, it's belong to the CDIR (Classless Inter-Domain Routing) 22.30.204.0/23 (range 22.30.204.0 to 22.30.205.255). The autonomous system number (ASN) is 4538.
| ASN | 4538 |
| IP starting by | 22.30.204.0 |
| IP ending by | 22.30.205.255 |
| ASN Name | China Education and Research Network Center |
| CDIR | 22.30.204.0/23 |
| Numerical IP | |
| Registry | |
| Last update | 23/09/2018 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Houston | 29.7633 | -95.3633 | 2018-09-23 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2018-09-23 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.99.55.0 | 358823680 | 0 |
| 21.99.55.1 | 358823681 | 0 |
| 21.99.55.2 | 358823682 | 0 |
| 21.99.55.3 | 358823683 | 0 |
| 21.99.55.4 | 358823684 | 0 |
| 21.99.55.5 | 358823685 | 0 |
| 21.99.55.6 | 358823686 | 0 |
| 21.99.55.7 | 358823687 | 0 |
| 21.99.55.8 | 358823688 | 0 |
| 21.99.55.9 | 358823689 | 0 |
| 21.99.55.10 | 358823690 | 0 |
| 21.99.55.11 | 358823691 | 0 |
| 21.99.55.12 | 358823692 | 0 |
| 21.99.55.13 | 358823693 | 0 |
| 21.99.55.14 | 358823694 | 0 |
| 21.99.55.15 | 358823695 | 0 |
| 21.99.55.16 | 358823696 | 0 |
| 21.99.55.17 | 358823697 | 0 |
| 21.99.55.18 | 358823698 | 0 |
| 21.99.55.19 | 358823699 | 0 |
| 21.99.55.20 | 358823700 | 0 |
| 21.99.55.21 | 358823701 | 0 |
| 21.99.55.22 | 358823702 | 0 |
| 21.99.55.23 | 358823703 | 0 |
| 21.99.55.24 | 358823704 | 0 |
| 21.99.55.25 | 358823705 | 0 |
| 21.99.55.26 | 358823706 | 0 |
| 21.99.55.27 | 358823707 | 0 |
| 21.99.55.28 | 358823708 | 0 |
| 21.99.55.29 | 358823709 | 0 |
| 21.99.55.30 | 358823710 | 0 |
| 21.99.55.31 | 358823711 | 0 |
| 21.99.55.32 | 358823712 | 0 |
| 21.99.55.33 | 358823713 | 0 |
| 21.99.55.34 | 358823714 | 0 |
| 21.99.55.35 | 358823715 | 0 |
| 21.99.55.36 | 358823716 | 0 |
| 21.99.55.37 | 358823717 | 0 |
| 21.99.55.38 | 358823718 | 0 |
| 21.99.55.39 | 358823719 | 0 |
| 21.99.55.40 | 358823720 | 0 |
| 21.99.55.41 | 358823721 | 0 |
| 21.99.55.42 | 358823722 | 0 |
| 21.99.55.43 | 358823723 | 0 |
| 21.99.55.44 | 358823724 | 0 |
| 21.99.55.45 | 358823725 | 0 |
| 21.99.55.46 | 358823726 | 0 |
| 21.99.55.47 | 358823727 | 0 |
| 21.99.55.48 | 358823728 | 0 |
| 21.99.55.49 | 358823729 | 0 |
| 21.99.55.50 | 358823730 | 0 |
| 21.99.55.51 | 358823731 | 0 |
| 21.99.55.52 | 358823732 | 0 |
| 21.99.55.53 | 358823733 | 0 |
| 21.99.55.54 | 358823734 | 0 |
| 21.99.55.55 | 358823735 | 0 |
| 21.99.55.56 | 358823736 | 0 |
| 21.99.55.57 | 358823737 | 0 |
| 21.99.55.58 | 358823738 | 0 |
| 21.99.55.59 | 358823739 | 0 |
| 21.99.55.60 | 358823740 | 0 |
| 21.99.55.61 | 358823741 | 0 |
| 21.99.55.62 | 358823742 | 0 |
| 21.99.55.63 | 358823743 | 0 |
| 21.99.55.64 | 358823744 | 0 |
| 21.99.55.65 | 358823745 | 0 |
| 21.99.55.66 | 358823746 | 0 |
| 21.99.55.67 | 358823747 | 0 |
| 21.99.55.68 | 358823748 | 0 |
| 21.99.55.69 | 358823749 | 0 |
| 21.99.55.70 | 358823750 | 0 |
| 21.99.55.71 | 358823751 | 0 |
| 21.99.55.72 | 358823752 | 0 |
| 21.99.55.73 | 358823753 | 0 |
| 21.99.55.74 | 358823754 | 0 |
| 21.99.55.75 | 358823755 | 0 |
| 21.99.55.76 | 358823756 | 0 |
| 21.99.55.77 | 358823757 | 0 |
| 21.99.55.78 | 358823758 | 0 |
| 21.99.55.79 | 358823759 | 0 |
| 21.99.55.80 | 358823760 | 0 |
| 21.99.55.81 | 358823761 | 0 |
| 21.99.55.82 | 358823762 | 0 |
| 21.99.55.83 | 358823763 | 0 |
| 21.99.55.84 | 358823764 | 0 |
| 21.99.55.85 | 358823765 | 0 |