The IP address 21.252.4 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 | 22/02/2019 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Hempstead | 40.7062 | -73.6187 | 2019-02-22 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2019-02-22 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.252.4.0 | 368837632 | 0 |
| 21.252.4.1 | 368837633 | 0 |
| 21.252.4.2 | 368837634 | 0 |
| 21.252.4.3 | 368837635 | 0 |
| 21.252.4.4 | 368837636 | 0 |
| 21.252.4.5 | 368837637 | 0 |
| 21.252.4.6 | 368837638 | 0 |
| 21.252.4.7 | 368837639 | 0 |
| 21.252.4.8 | 368837640 | 0 |
| 21.252.4.9 | 368837641 | 0 |
| 21.252.4.10 | 368837642 | 0 |
| 21.252.4.11 | 368837643 | 0 |
| 21.252.4.12 | 368837644 | 0 |
| 21.252.4.13 | 368837645 | 0 |
| 21.252.4.14 | 368837646 | 0 |
| 21.252.4.15 | 368837647 | 0 |
| 21.252.4.16 | 368837648 | 0 |
| 21.252.4.17 | 368837649 | 0 |
| 21.252.4.18 | 368837650 | 0 |
| 21.252.4.19 | 368837651 | 0 |
| 21.252.4.20 | 368837652 | 0 |
| 21.252.4.21 | 368837653 | 0 |
| 21.252.4.22 | 368837654 | 0 |
| 21.252.4.23 | 368837655 | 0 |
| 21.252.4.24 | 368837656 | 0 |
| 21.252.4.25 | 368837657 | 0 |
| 21.252.4.26 | 368837658 | 0 |
| 21.252.4.27 | 368837659 | 0 |
| 21.252.4.28 | 368837660 | 0 |
| 21.252.4.29 | 368837661 | 0 |
| 21.252.4.30 | 368837662 | 0 |
| 21.252.4.31 | 368837663 | 0 |
| 21.252.4.32 | 368837664 | 0 |
| 21.252.4.33 | 368837665 | 0 |
| 21.252.4.34 | 368837666 | 0 |
| 21.252.4.35 | 368837667 | 0 |
| 21.252.4.36 | 368837668 | 0 |
| 21.252.4.37 | 368837669 | 0 |
| 21.252.4.38 | 368837670 | 0 |
| 21.252.4.39 | 368837671 | 0 |
| 21.252.4.40 | 368837672 | 0 |
| 21.252.4.41 | 368837673 | 0 |
| 21.252.4.42 | 368837674 | 0 |
| 21.252.4.43 | 368837675 | 0 |
| 21.252.4.44 | 368837676 | 0 |
| 21.252.4.45 | 368837677 | 0 |
| 21.252.4.46 | 368837678 | 0 |
| 21.252.4.47 | 368837679 | 0 |
| 21.252.4.48 | 368837680 | 0 |
| 21.252.4.49 | 368837681 | 0 |
| 21.252.4.50 | 368837682 | 0 |
| 21.252.4.51 | 368837683 | 0 |
| 21.252.4.52 | 368837684 | 0 |
| 21.252.4.53 | 368837685 | 0 |
| 21.252.4.54 | 368837686 | 0 |
| 21.252.4.55 | 368837687 | 0 |
| 21.252.4.56 | 368837688 | 0 |
| 21.252.4.57 | 368837689 | 0 |
| 21.252.4.58 | 368837690 | 0 |
| 21.252.4.59 | 368837691 | 0 |
| 21.252.4.60 | 368837692 | 0 |
| 21.252.4.61 | 368837693 | 0 |
| 21.252.4.62 | 368837694 | 0 |
| 21.252.4.63 | 368837695 | 0 |
| 21.252.4.64 | 368837696 | 0 |
| 21.252.4.65 | 368837697 | 0 |
| 21.252.4.66 | 368837698 | 0 |
| 21.252.4.67 | 368837699 | 0 |
| 21.252.4.68 | 368837700 | 0 |
| 21.252.4.69 | 368837701 | 0 |
| 21.252.4.70 | 368837702 | 0 |
| 21.252.4.71 | 368837703 | 0 |
| 21.252.4.72 | 368837704 | 0 |
| 21.252.4.73 | 368837705 | 0 |
| 21.252.4.74 | 368837706 | 0 |
| 21.252.4.75 | 368837707 | 0 |
| 21.252.4.76 | 368837708 | 0 |
| 21.252.4.77 | 368837709 | 0 |
| 21.252.4.78 | 368837710 | 0 |
| 21.252.4.79 | 368837711 | 0 |
| 21.252.4.80 | 368837712 | 0 |
| 21.252.4.81 | 368837713 | 0 |
| 21.252.4.82 | 368837714 | 0 |
| 21.252.4.83 | 368837715 | 0 |
| 21.252.4.84 | 368837716 | 0 |
| 21.252.4.85 | 368837717 | 0 |