L'indirizzo IP 21.92.81 è fornito da China Education and Research Network Center, che è di proprietà del CIDR (Classless Inter-Domain Routing) 22.30.204.0/23, IP tra 22.30.204.0 a 22.30.205.255 ). Il numero di sistema autonomo (ASN) è 4538.
| ASN | 4538 |
| IP inizia con | 22.30.204.0 |
| IP finale con | 22.30.205.255 |
| ASN Nome | China Education and Research Network Center |
| CDIR | 22.30.204.0/23 |
| IP numerico | |
| Registe | |
| Ultimo aggiornamento | 19/09/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | US | United States | - | Columbus | 39,9664 | -83,0128 | 2017-09-19 |
| MaxMind | US | United States | - | - | 37,751 | -97,822 | 2017-09-19 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.92.81.0 | 358371584 | 0 |
| 21.92.81.1 | 358371585 | 0 |
| 21.92.81.2 | 358371586 | 0 |
| 21.92.81.3 | 358371587 | 0 |
| 21.92.81.4 | 358371588 | 0 |
| 21.92.81.5 | 358371589 | 0 |
| 21.92.81.6 | 358371590 | 0 |
| 21.92.81.7 | 358371591 | 0 |
| 21.92.81.8 | 358371592 | 0 |
| 21.92.81.9 | 358371593 | 0 |
| 21.92.81.10 | 358371594 | 0 |
| 21.92.81.11 | 358371595 | 0 |
| 21.92.81.12 | 358371596 | 0 |
| 21.92.81.13 | 358371597 | 0 |
| 21.92.81.14 | 358371598 | 0 |
| 21.92.81.15 | 358371599 | 0 |
| 21.92.81.16 | 358371600 | 0 |
| 21.92.81.17 | 358371601 | 0 |
| 21.92.81.18 | 358371602 | 0 |
| 21.92.81.19 | 358371603 | 0 |
| 21.92.81.20 | 358371604 | 0 |
| 21.92.81.21 | 358371605 | 0 |
| 21.92.81.22 | 358371606 | 0 |
| 21.92.81.23 | 358371607 | 0 |
| 21.92.81.24 | 358371608 | 0 |
| 21.92.81.25 | 358371609 | 0 |
| 21.92.81.26 | 358371610 | 0 |
| 21.92.81.27 | 358371611 | 0 |
| 21.92.81.28 | 358371612 | 0 |
| 21.92.81.29 | 358371613 | 0 |
| 21.92.81.30 | 358371614 | 0 |
| 21.92.81.31 | 358371615 | 0 |
| 21.92.81.32 | 358371616 | 0 |
| 21.92.81.33 | 358371617 | 0 |
| 21.92.81.34 | 358371618 | 0 |
| 21.92.81.35 | 358371619 | 0 |
| 21.92.81.36 | 358371620 | 0 |
| 21.92.81.37 | 358371621 | 0 |
| 21.92.81.38 | 358371622 | 0 |
| 21.92.81.39 | 358371623 | 0 |
| 21.92.81.40 | 358371624 | 0 |
| 21.92.81.41 | 358371625 | 0 |
| 21.92.81.42 | 358371626 | 0 |
| 21.92.81.43 | 358371627 | 0 |
| 21.92.81.44 | 358371628 | 0 |
| 21.92.81.45 | 358371629 | 0 |
| 21.92.81.46 | 358371630 | 0 |
| 21.92.81.47 | 358371631 | 0 |
| 21.92.81.48 | 358371632 | 0 |
| 21.92.81.49 | 358371633 | 0 |
| 21.92.81.50 | 358371634 | 0 |
| 21.92.81.51 | 358371635 | 0 |
| 21.92.81.52 | 358371636 | 0 |
| 21.92.81.53 | 358371637 | 0 |
| 21.92.81.54 | 358371638 | 0 |
| 21.92.81.55 | 358371639 | 0 |
| 21.92.81.56 | 358371640 | 0 |
| 21.92.81.57 | 358371641 | 0 |
| 21.92.81.58 | 358371642 | 0 |
| 21.92.81.59 | 358371643 | 0 |
| 21.92.81.60 | 358371644 | 0 |
| 21.92.81.61 | 358371645 | 0 |
| 21.92.81.62 | 358371646 | 0 |
| 21.92.81.63 | 358371647 | 0 |
| 21.92.81.64 | 358371648 | 0 |
| 21.92.81.65 | 358371649 | 0 |
| 21.92.81.66 | 358371650 | 0 |
| 21.92.81.67 | 358371651 | 0 |
| 21.92.81.68 | 358371652 | 0 |
| 21.92.81.69 | 358371653 | 0 |
| 21.92.81.70 | 358371654 | 0 |
| 21.92.81.71 | 358371655 | 0 |
| 21.92.81.72 | 358371656 | 0 |
| 21.92.81.73 | 358371657 | 0 |
| 21.92.81.74 | 358371658 | 0 |
| 21.92.81.75 | 358371659 | 0 |
| 21.92.81.76 | 358371660 | 0 |
| 21.92.81.77 | 358371661 | 0 |
| 21.92.81.78 | 358371662 | 0 |
| 21.92.81.79 | 358371663 | 0 |
| 21.92.81.80 | 358371664 | 0 |
| 21.92.81.81 | 358371665 | 0 |
| 21.92.81.82 | 358371666 | 0 |
| 21.92.81.83 | 358371667 | 0 |
| 21.92.81.84 | 358371668 | 0 |
| 21.92.81.85 | 358371669 | 0 |