L'indirizzo IP 21.78.87 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 | 19/08/2018 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | US | United States | - | Clovis | 34,4048 | -103,2052 | 2018-08-19 |
| MaxMind | US | United States | - | - | 37,751 | -97,822 | 2018-08-19 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.78.87.0 | 357455616 | 0 |
| 21.78.87.1 | 357455617 | 0 |
| 21.78.87.2 | 357455618 | 0 |
| 21.78.87.3 | 357455619 | 0 |
| 21.78.87.4 | 357455620 | 0 |
| 21.78.87.5 | 357455621 | 0 |
| 21.78.87.6 | 357455622 | 0 |
| 21.78.87.7 | 357455623 | 0 |
| 21.78.87.8 | 357455624 | 0 |
| 21.78.87.9 | 357455625 | 0 |
| 21.78.87.10 | 357455626 | 0 |
| 21.78.87.11 | 357455627 | 0 |
| 21.78.87.12 | 357455628 | 0 |
| 21.78.87.13 | 357455629 | 0 |
| 21.78.87.14 | 357455630 | 0 |
| 21.78.87.15 | 357455631 | 0 |
| 21.78.87.16 | 357455632 | 0 |
| 21.78.87.17 | 357455633 | 0 |
| 21.78.87.18 | 357455634 | 0 |
| 21.78.87.19 | 357455635 | 0 |
| 21.78.87.20 | 357455636 | 0 |
| 21.78.87.21 | 357455637 | 0 |
| 21.78.87.22 | 357455638 | 0 |
| 21.78.87.23 | 357455639 | 0 |
| 21.78.87.24 | 357455640 | 0 |
| 21.78.87.25 | 357455641 | 0 |
| 21.78.87.26 | 357455642 | 0 |
| 21.78.87.27 | 357455643 | 0 |
| 21.78.87.28 | 357455644 | 0 |
| 21.78.87.29 | 357455645 | 0 |
| 21.78.87.30 | 357455646 | 0 |
| 21.78.87.31 | 357455647 | 0 |
| 21.78.87.32 | 357455648 | 0 |
| 21.78.87.33 | 357455649 | 0 |
| 21.78.87.34 | 357455650 | 0 |
| 21.78.87.35 | 357455651 | 0 |
| 21.78.87.36 | 357455652 | 0 |
| 21.78.87.37 | 357455653 | 0 |
| 21.78.87.38 | 357455654 | 0 |
| 21.78.87.39 | 357455655 | 0 |
| 21.78.87.40 | 357455656 | 0 |
| 21.78.87.41 | 357455657 | 0 |
| 21.78.87.42 | 357455658 | 0 |
| 21.78.87.43 | 357455659 | 0 |
| 21.78.87.44 | 357455660 | 0 |
| 21.78.87.45 | 357455661 | 0 |
| 21.78.87.46 | 357455662 | 0 |
| 21.78.87.47 | 357455663 | 0 |
| 21.78.87.48 | 357455664 | 0 |
| 21.78.87.49 | 357455665 | 0 |
| 21.78.87.50 | 357455666 | 0 |
| 21.78.87.51 | 357455667 | 0 |
| 21.78.87.52 | 357455668 | 0 |
| 21.78.87.53 | 357455669 | 0 |
| 21.78.87.54 | 357455670 | 0 |
| 21.78.87.55 | 357455671 | 0 |
| 21.78.87.56 | 357455672 | 0 |
| 21.78.87.57 | 357455673 | 0 |
| 21.78.87.58 | 357455674 | 0 |
| 21.78.87.59 | 357455675 | 0 |
| 21.78.87.60 | 357455676 | 0 |
| 21.78.87.61 | 357455677 | 0 |
| 21.78.87.62 | 357455678 | 0 |
| 21.78.87.63 | 357455679 | 0 |
| 21.78.87.64 | 357455680 | 0 |
| 21.78.87.65 | 357455681 | 0 |
| 21.78.87.66 | 357455682 | 0 |
| 21.78.87.67 | 357455683 | 0 |
| 21.78.87.68 | 357455684 | 0 |
| 21.78.87.69 | 357455685 | 0 |
| 21.78.87.70 | 357455686 | 0 |
| 21.78.87.71 | 357455687 | 0 |
| 21.78.87.72 | 357455688 | 0 |
| 21.78.87.73 | 357455689 | 0 |
| 21.78.87.74 | 357455690 | 0 |
| 21.78.87.75 | 357455691 | 0 |
| 21.78.87.76 | 357455692 | 0 |
| 21.78.87.77 | 357455693 | 0 |
| 21.78.87.78 | 357455694 | 0 |
| 21.78.87.79 | 357455695 | 0 |
| 21.78.87.80 | 357455696 | 0 |
| 21.78.87.81 | 357455697 | 0 |
| 21.78.87.82 | 357455698 | 0 |
| 21.78.87.83 | 357455699 | 0 |
| 21.78.87.84 | 357455700 | 0 |
| 21.78.87.85 | 357455701 | 0 |