The IP address 21.91.52 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 | 26/05/2019 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Houston | 29.7633 | -95.3633 | 2019-05-26 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2019-05-26 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.91.52.0 | 358298624 | 0 |
| 21.91.52.1 | 358298625 | 0 |
| 21.91.52.2 | 358298626 | 0 |
| 21.91.52.3 | 358298627 | 0 |
| 21.91.52.4 | 358298628 | 0 |
| 21.91.52.5 | 358298629 | 0 |
| 21.91.52.6 | 358298630 | 0 |
| 21.91.52.7 | 358298631 | 0 |
| 21.91.52.8 | 358298632 | 0 |
| 21.91.52.9 | 358298633 | 0 |
| 21.91.52.10 | 358298634 | 0 |
| 21.91.52.11 | 358298635 | 0 |
| 21.91.52.12 | 358298636 | 0 |
| 21.91.52.13 | 358298637 | 0 |
| 21.91.52.14 | 358298638 | 0 |
| 21.91.52.15 | 358298639 | 0 |
| 21.91.52.16 | 358298640 | 0 |
| 21.91.52.17 | 358298641 | 0 |
| 21.91.52.18 | 358298642 | 0 |
| 21.91.52.19 | 358298643 | 0 |
| 21.91.52.20 | 358298644 | 0 |
| 21.91.52.21 | 358298645 | 0 |
| 21.91.52.22 | 358298646 | 0 |
| 21.91.52.23 | 358298647 | 0 |
| 21.91.52.24 | 358298648 | 0 |
| 21.91.52.25 | 358298649 | 0 |
| 21.91.52.26 | 358298650 | 0 |
| 21.91.52.27 | 358298651 | 0 |
| 21.91.52.28 | 358298652 | 0 |
| 21.91.52.29 | 358298653 | 0 |
| 21.91.52.30 | 358298654 | 0 |
| 21.91.52.31 | 358298655 | 0 |
| 21.91.52.32 | 358298656 | 0 |
| 21.91.52.33 | 358298657 | 0 |
| 21.91.52.34 | 358298658 | 0 |
| 21.91.52.35 | 358298659 | 0 |
| 21.91.52.36 | 358298660 | 0 |
| 21.91.52.37 | 358298661 | 0 |
| 21.91.52.38 | 358298662 | 0 |
| 21.91.52.39 | 358298663 | 0 |
| 21.91.52.40 | 358298664 | 0 |
| 21.91.52.41 | 358298665 | 0 |
| 21.91.52.42 | 358298666 | 0 |
| 21.91.52.43 | 358298667 | 0 |
| 21.91.52.44 | 358298668 | 0 |
| 21.91.52.45 | 358298669 | 0 |
| 21.91.52.46 | 358298670 | 0 |
| 21.91.52.47 | 358298671 | 0 |
| 21.91.52.48 | 358298672 | 0 |
| 21.91.52.49 | 358298673 | 0 |
| 21.91.52.50 | 358298674 | 0 |
| 21.91.52.51 | 358298675 | 0 |
| 21.91.52.52 | 358298676 | 0 |
| 21.91.52.53 | 358298677 | 0 |
| 21.91.52.54 | 358298678 | 0 |
| 21.91.52.55 | 358298679 | 0 |
| 21.91.52.56 | 358298680 | 0 |
| 21.91.52.57 | 358298681 | 0 |
| 21.91.52.58 | 358298682 | 0 |
| 21.91.52.59 | 358298683 | 0 |
| 21.91.52.60 | 358298684 | 0 |
| 21.91.52.61 | 358298685 | 0 |
| 21.91.52.62 | 358298686 | 0 |
| 21.91.52.63 | 358298687 | 0 |
| 21.91.52.64 | 358298688 | 0 |
| 21.91.52.65 | 358298689 | 0 |
| 21.91.52.66 | 358298690 | 0 |
| 21.91.52.67 | 358298691 | 0 |
| 21.91.52.68 | 358298692 | 0 |
| 21.91.52.69 | 358298693 | 0 |
| 21.91.52.70 | 358298694 | 0 |
| 21.91.52.71 | 358298695 | 0 |
| 21.91.52.72 | 358298696 | 0 |
| 21.91.52.73 | 358298697 | 0 |
| 21.91.52.74 | 358298698 | 0 |
| 21.91.52.75 | 358298699 | 0 |
| 21.91.52.76 | 358298700 | 0 |
| 21.91.52.77 | 358298701 | 0 |
| 21.91.52.78 | 358298702 | 0 |
| 21.91.52.79 | 358298703 | 0 |
| 21.91.52.80 | 358298704 | 0 |
| 21.91.52.81 | 358298705 | 0 |
| 21.91.52.82 | 358298706 | 0 |
| 21.91.52.83 | 358298707 | 0 |
| 21.91.52.84 | 358298708 | 0 |
| 21.91.52.85 | 358298709 | 0 |