La dirección IP 21.91.44 es proporcionada por China Education and Research Network Center, que es propiedad de la CIDR (Classless Inter-Domain Routing) 22.30.204.0/23, IP entre 22.30.204.0 a 22.30.205.255 ). El número de sistema autónomo (ASN) es 4538.
| ASN | 4538 |
| IP que comienzan con | 22.30.204.0 |
| IP que termina con | 22.30.205.255 |
| ASN Nombre | China Education and Research Network Center |
| CDIR | 22.30.204.0/23 |
| IP numérica | |
| Registe | |
| Última actualización | 30/01/2018 |

| Código País | País | Región | Ciudad | Latitud | Longitud | Última actualización | |
| IP2Location | US | Estados Unidos | - | Columbus | 39,9664 | -83,0128 | 2018-01-30 |
| MaxMind | US | Estados Unidos | - | - | 37,751 | -97,822 | 2018-01-30 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.91.44.0 | 358296576 | 0 |
| 21.91.44.1 | 358296577 | 0 |
| 21.91.44.2 | 358296578 | 0 |
| 21.91.44.3 | 358296579 | 0 |
| 21.91.44.4 | 358296580 | 0 |
| 21.91.44.5 | 358296581 | 0 |
| 21.91.44.6 | 358296582 | 0 |
| 21.91.44.7 | 358296583 | 0 |
| 21.91.44.8 | 358296584 | 0 |
| 21.91.44.9 | 358296585 | 0 |
| 21.91.44.10 | 358296586 | 0 |
| 21.91.44.11 | 358296587 | 0 |
| 21.91.44.12 | 358296588 | 0 |
| 21.91.44.13 | 358296589 | 0 |
| 21.91.44.14 | 358296590 | 0 |
| 21.91.44.15 | 358296591 | 0 |
| 21.91.44.16 | 358296592 | 0 |
| 21.91.44.17 | 358296593 | 0 |
| 21.91.44.18 | 358296594 | 0 |
| 21.91.44.19 | 358296595 | 0 |
| 21.91.44.20 | 358296596 | 0 |
| 21.91.44.21 | 358296597 | 0 |
| 21.91.44.22 | 358296598 | 0 |
| 21.91.44.23 | 358296599 | 0 |
| 21.91.44.24 | 358296600 | 0 |
| 21.91.44.25 | 358296601 | 0 |
| 21.91.44.26 | 358296602 | 0 |
| 21.91.44.27 | 358296603 | 0 |
| 21.91.44.28 | 358296604 | 0 |
| 21.91.44.29 | 358296605 | 0 |
| 21.91.44.30 | 358296606 | 0 |
| 21.91.44.31 | 358296607 | 0 |
| 21.91.44.32 | 358296608 | 0 |
| 21.91.44.33 | 358296609 | 0 |
| 21.91.44.34 | 358296610 | 0 |
| 21.91.44.35 | 358296611 | 0 |
| 21.91.44.36 | 358296612 | 0 |
| 21.91.44.37 | 358296613 | 0 |
| 21.91.44.38 | 358296614 | 0 |
| 21.91.44.39 | 358296615 | 0 |
| 21.91.44.40 | 358296616 | 0 |
| 21.91.44.41 | 358296617 | 0 |
| 21.91.44.42 | 358296618 | 0 |
| 21.91.44.43 | 358296619 | 0 |
| 21.91.44.44 | 358296620 | 0 |
| 21.91.44.45 | 358296621 | 0 |
| 21.91.44.46 | 358296622 | 0 |
| 21.91.44.47 | 358296623 | 0 |
| 21.91.44.48 | 358296624 | 0 |
| 21.91.44.49 | 358296625 | 0 |
| 21.91.44.50 | 358296626 | 0 |
| 21.91.44.51 | 358296627 | 0 |
| 21.91.44.52 | 358296628 | 0 |
| 21.91.44.53 | 358296629 | 0 |
| 21.91.44.54 | 358296630 | 0 |
| 21.91.44.55 | 358296631 | 0 |
| 21.91.44.56 | 358296632 | 0 |
| 21.91.44.57 | 358296633 | 0 |
| 21.91.44.58 | 358296634 | 0 |
| 21.91.44.59 | 358296635 | 0 |
| 21.91.44.60 | 358296636 | 0 |
| 21.91.44.61 | 358296637 | 0 |
| 21.91.44.62 | 358296638 | 0 |
| 21.91.44.63 | 358296639 | 0 |
| 21.91.44.64 | 358296640 | 0 |
| 21.91.44.65 | 358296641 | 0 |
| 21.91.44.66 | 358296642 | 0 |
| 21.91.44.67 | 358296643 | 0 |
| 21.91.44.68 | 358296644 | 0 |
| 21.91.44.69 | 358296645 | 0 |
| 21.91.44.70 | 358296646 | 0 |
| 21.91.44.71 | 358296647 | 0 |
| 21.91.44.72 | 358296648 | 0 |
| 21.91.44.73 | 358296649 | 0 |
| 21.91.44.74 | 358296650 | 0 |
| 21.91.44.75 | 358296651 | 0 |
| 21.91.44.76 | 358296652 | 0 |
| 21.91.44.77 | 358296653 | 0 |
| 21.91.44.78 | 358296654 | 0 |
| 21.91.44.79 | 358296655 | 0 |
| 21.91.44.80 | 358296656 | 0 |
| 21.91.44.81 | 358296657 | 0 |
| 21.91.44.82 | 358296658 | 0 |
| 21.91.44.83 | 358296659 | 0 |
| 21.91.44.84 | 358296660 | 0 |
| 21.91.44.85 | 358296661 | 0 |