Les adresses IP débutant par 21.97.86 sont fournies par China Education and Research Network Center, elles appartiennent au CIDR (Classless Inter-Domain Routing) 22.30.204.0/23, le bloc IP comprant les adresses de 22.30.204.0 à 22.30.205.255). Le numéro de système autonome (ASN) est 4538.
| ASN | 4538 |
| IP commençant par | 22.30.204.0 |
| IP se terminant par | 22.30.205.255 |
| Nom ASN | China Education and Research Network Center |
| CDIR | 22.30.204.0/23 |
| IP numérique | |
| Registe | |
| Dernière mise à jour | 24/09/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | US | États-Unis | - | Columbus | 39,9664 | -83,0128 | 2017-09-24 |
| MaxMind | US | États-Unis | - | - | 37,751 | -97,822 | 2017-09-24 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.97.86.0 | 358700544 | 0 |
| 21.97.86.1 | 358700545 | 0 |
| 21.97.86.2 | 358700546 | 0 |
| 21.97.86.3 | 358700547 | 0 |
| 21.97.86.4 | 358700548 | 0 |
| 21.97.86.5 | 358700549 | 0 |
| 21.97.86.6 | 358700550 | 0 |
| 21.97.86.7 | 358700551 | 0 |
| 21.97.86.8 | 358700552 | 0 |
| 21.97.86.9 | 358700553 | 0 |
| 21.97.86.10 | 358700554 | 0 |
| 21.97.86.11 | 358700555 | 0 |
| 21.97.86.12 | 358700556 | 0 |
| 21.97.86.13 | 358700557 | 0 |
| 21.97.86.14 | 358700558 | 0 |
| 21.97.86.15 | 358700559 | 0 |
| 21.97.86.16 | 358700560 | 0 |
| 21.97.86.17 | 358700561 | 0 |
| 21.97.86.18 | 358700562 | 0 |
| 21.97.86.19 | 358700563 | 0 |
| 21.97.86.20 | 358700564 | 0 |
| 21.97.86.21 | 358700565 | 0 |
| 21.97.86.22 | 358700566 | 0 |
| 21.97.86.23 | 358700567 | 0 |
| 21.97.86.24 | 358700568 | 0 |
| 21.97.86.25 | 358700569 | 0 |
| 21.97.86.26 | 358700570 | 0 |
| 21.97.86.27 | 358700571 | 0 |
| 21.97.86.28 | 358700572 | 0 |
| 21.97.86.29 | 358700573 | 0 |
| 21.97.86.30 | 358700574 | 0 |
| 21.97.86.31 | 358700575 | 0 |
| 21.97.86.32 | 358700576 | 0 |
| 21.97.86.33 | 358700577 | 0 |
| 21.97.86.34 | 358700578 | 0 |
| 21.97.86.35 | 358700579 | 0 |
| 21.97.86.36 | 358700580 | 0 |
| 21.97.86.37 | 358700581 | 0 |
| 21.97.86.38 | 358700582 | 0 |
| 21.97.86.39 | 358700583 | 0 |
| 21.97.86.40 | 358700584 | 0 |
| 21.97.86.41 | 358700585 | 0 |
| 21.97.86.42 | 358700586 | 0 |
| 21.97.86.43 | 358700587 | 0 |
| 21.97.86.44 | 358700588 | 0 |
| 21.97.86.45 | 358700589 | 0 |
| 21.97.86.46 | 358700590 | 0 |
| 21.97.86.47 | 358700591 | 0 |
| 21.97.86.48 | 358700592 | 0 |
| 21.97.86.49 | 358700593 | 0 |
| 21.97.86.50 | 358700594 | 0 |
| 21.97.86.51 | 358700595 | 0 |
| 21.97.86.52 | 358700596 | 0 |
| 21.97.86.53 | 358700597 | 0 |
| 21.97.86.54 | 358700598 | 0 |
| 21.97.86.55 | 358700599 | 0 |
| 21.97.86.56 | 358700600 | 0 |
| 21.97.86.57 | 358700601 | 0 |
| 21.97.86.58 | 358700602 | 0 |
| 21.97.86.59 | 358700603 | 0 |
| 21.97.86.60 | 358700604 | 0 |
| 21.97.86.61 | 358700605 | 0 |
| 21.97.86.62 | 358700606 | 0 |
| 21.97.86.63 | 358700607 | 0 |
| 21.97.86.64 | 358700608 | 0 |
| 21.97.86.65 | 358700609 | 0 |
| 21.97.86.66 | 358700610 | 0 |
| 21.97.86.67 | 358700611 | 0 |
| 21.97.86.68 | 358700612 | 0 |
| 21.97.86.69 | 358700613 | 0 |
| 21.97.86.70 | 358700614 | 0 |
| 21.97.86.71 | 358700615 | 0 |
| 21.97.86.72 | 358700616 | 0 |
| 21.97.86.73 | 358700617 | 0 |
| 21.97.86.74 | 358700618 | 0 |
| 21.97.86.75 | 358700619 | 0 |
| 21.97.86.76 | 358700620 | 0 |
| 21.97.86.77 | 358700621 | 0 |
| 21.97.86.78 | 358700622 | 0 |
| 21.97.86.79 | 358700623 | 0 |
| 21.97.86.80 | 358700624 | 0 |
| 21.97.86.81 | 358700625 | 0 |
| 21.97.86.82 | 358700626 | 0 |
| 21.97.86.83 | 358700627 | 0 |
| 21.97.86.84 | 358700628 | 0 |
| 21.97.86.85 | 358700629 | 0 |