The IP address 21.91.48 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 | 19/02/2018 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Columbus | 39.9664 | -83.0128 | 2018-02-18 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2018-02-18 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.91.48.0 | 358297600 | 0 |
| 21.91.48.1 | 358297601 | 0 |
| 21.91.48.2 | 358297602 | 0 |
| 21.91.48.3 | 358297603 | 0 |
| 21.91.48.4 | 358297604 | 0 |
| 21.91.48.5 | 358297605 | 0 |
| 21.91.48.6 | 358297606 | 0 |
| 21.91.48.7 | 358297607 | 0 |
| 21.91.48.8 | 358297608 | 0 |
| 21.91.48.9 | 358297609 | 0 |
| 21.91.48.10 | 358297610 | 0 |
| 21.91.48.11 | 358297611 | 0 |
| 21.91.48.12 | 358297612 | 0 |
| 21.91.48.13 | 358297613 | 0 |
| 21.91.48.14 | 358297614 | 0 |
| 21.91.48.15 | 358297615 | 0 |
| 21.91.48.16 | 358297616 | 0 |
| 21.91.48.17 | 358297617 | 0 |
| 21.91.48.18 | 358297618 | 0 |
| 21.91.48.19 | 358297619 | 0 |
| 21.91.48.20 | 358297620 | 0 |
| 21.91.48.21 | 358297621 | 0 |
| 21.91.48.22 | 358297622 | 0 |
| 21.91.48.23 | 358297623 | 0 |
| 21.91.48.24 | 358297624 | 0 |
| 21.91.48.25 | 358297625 | 0 |
| 21.91.48.26 | 358297626 | 0 |
| 21.91.48.27 | 358297627 | 0 |
| 21.91.48.28 | 358297628 | 0 |
| 21.91.48.29 | 358297629 | 0 |
| 21.91.48.30 | 358297630 | 0 |
| 21.91.48.31 | 358297631 | 0 |
| 21.91.48.32 | 358297632 | 0 |
| 21.91.48.33 | 358297633 | 0 |
| 21.91.48.34 | 358297634 | 0 |
| 21.91.48.35 | 358297635 | 0 |
| 21.91.48.36 | 358297636 | 0 |
| 21.91.48.37 | 358297637 | 0 |
| 21.91.48.38 | 358297638 | 0 |
| 21.91.48.39 | 358297639 | 0 |
| 21.91.48.40 | 358297640 | 0 |
| 21.91.48.41 | 358297641 | 0 |
| 21.91.48.42 | 358297642 | 0 |
| 21.91.48.43 | 358297643 | 0 |
| 21.91.48.44 | 358297644 | 0 |
| 21.91.48.45 | 358297645 | 0 |
| 21.91.48.46 | 358297646 | 0 |
| 21.91.48.47 | 358297647 | 0 |
| 21.91.48.48 | 358297648 | 0 |
| 21.91.48.49 | 358297649 | 0 |
| 21.91.48.50 | 358297650 | 0 |
| 21.91.48.51 | 358297651 | 0 |
| 21.91.48.52 | 358297652 | 0 |
| 21.91.48.53 | 358297653 | 0 |
| 21.91.48.54 | 358297654 | 0 |
| 21.91.48.55 | 358297655 | 0 |
| 21.91.48.56 | 358297656 | 0 |
| 21.91.48.57 | 358297657 | 0 |
| 21.91.48.58 | 358297658 | 0 |
| 21.91.48.59 | 358297659 | 0 |
| 21.91.48.60 | 358297660 | 0 |
| 21.91.48.61 | 358297661 | 0 |
| 21.91.48.62 | 358297662 | 0 |
| 21.91.48.63 | 358297663 | 0 |
| 21.91.48.64 | 358297664 | 0 |
| 21.91.48.65 | 358297665 | 0 |
| 21.91.48.66 | 358297666 | 0 |
| 21.91.48.67 | 358297667 | 0 |
| 21.91.48.68 | 358297668 | 0 |
| 21.91.48.69 | 358297669 | 0 |
| 21.91.48.70 | 358297670 | 0 |
| 21.91.48.71 | 358297671 | 0 |
| 21.91.48.72 | 358297672 | 0 |
| 21.91.48.73 | 358297673 | 0 |
| 21.91.48.74 | 358297674 | 0 |
| 21.91.48.75 | 358297675 | 0 |
| 21.91.48.76 | 358297676 | 0 |
| 21.91.48.77 | 358297677 | 0 |
| 21.91.48.78 | 358297678 | 0 |
| 21.91.48.79 | 358297679 | 0 |
| 21.91.48.80 | 358297680 | 0 |
| 21.91.48.81 | 358297681 | 0 |
| 21.91.48.82 | 358297682 | 0 |
| 21.91.48.83 | 358297683 | 0 |
| 21.91.48.84 | 358297684 | 0 |
| 21.91.48.85 | 358297685 | 0 |