La dirección IP 21.90.50 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 | 16/02/2018 |

| Código País | País | Región | Ciudad | Latitud | Longitud | Última actualización | |
| IP2Location | US | Estados Unidos | - | Columbus | 39,9664 | -83,0128 | 2018-02-15 |
| MaxMind | US | Estados Unidos | - | - | 37,751 | -97,822 | 2018-02-15 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.90.50.0 | 358232576 | 0 |
| 21.90.50.1 | 358232577 | 0 |
| 21.90.50.2 | 358232578 | 0 |
| 21.90.50.3 | 358232579 | 0 |
| 21.90.50.4 | 358232580 | 0 |
| 21.90.50.5 | 358232581 | 0 |
| 21.90.50.6 | 358232582 | 0 |
| 21.90.50.7 | 358232583 | 0 |
| 21.90.50.8 | 358232584 | 0 |
| 21.90.50.9 | 358232585 | 0 |
| 21.90.50.10 | 358232586 | 0 |
| 21.90.50.11 | 358232587 | 0 |
| 21.90.50.12 | 358232588 | 0 |
| 21.90.50.13 | 358232589 | 0 |
| 21.90.50.14 | 358232590 | 0 |
| 21.90.50.15 | 358232591 | 0 |
| 21.90.50.16 | 358232592 | 0 |
| 21.90.50.17 | 358232593 | 0 |
| 21.90.50.18 | 358232594 | 0 |
| 21.90.50.19 | 358232595 | 0 |
| 21.90.50.20 | 358232596 | 0 |
| 21.90.50.21 | 358232597 | 0 |
| 21.90.50.22 | 358232598 | 0 |
| 21.90.50.23 | 358232599 | 0 |
| 21.90.50.24 | 358232600 | 0 |
| 21.90.50.25 | 358232601 | 0 |
| 21.90.50.26 | 358232602 | 0 |
| 21.90.50.27 | 358232603 | 0 |
| 21.90.50.28 | 358232604 | 0 |
| 21.90.50.29 | 358232605 | 0 |
| 21.90.50.30 | 358232606 | 0 |
| 21.90.50.31 | 358232607 | 0 |
| 21.90.50.32 | 358232608 | 0 |
| 21.90.50.33 | 358232609 | 0 |
| 21.90.50.34 | 358232610 | 0 |
| 21.90.50.35 | 358232611 | 0 |
| 21.90.50.36 | 358232612 | 0 |
| 21.90.50.37 | 358232613 | 0 |
| 21.90.50.38 | 358232614 | 0 |
| 21.90.50.39 | 358232615 | 0 |
| 21.90.50.40 | 358232616 | 0 |
| 21.90.50.41 | 358232617 | 0 |
| 21.90.50.42 | 358232618 | 0 |
| 21.90.50.43 | 358232619 | 0 |
| 21.90.50.44 | 358232620 | 0 |
| 21.90.50.45 | 358232621 | 0 |
| 21.90.50.46 | 358232622 | 0 |
| 21.90.50.47 | 358232623 | 0 |
| 21.90.50.48 | 358232624 | 0 |
| 21.90.50.49 | 358232625 | 0 |
| 21.90.50.50 | 358232626 | 0 |
| 21.90.50.51 | 358232627 | 0 |
| 21.90.50.52 | 358232628 | 0 |
| 21.90.50.53 | 358232629 | 0 |
| 21.90.50.54 | 358232630 | 0 |
| 21.90.50.55 | 358232631 | 0 |
| 21.90.50.56 | 358232632 | 0 |
| 21.90.50.57 | 358232633 | 0 |
| 21.90.50.58 | 358232634 | 0 |
| 21.90.50.59 | 358232635 | 0 |
| 21.90.50.60 | 358232636 | 0 |
| 21.90.50.61 | 358232637 | 0 |
| 21.90.50.62 | 358232638 | 0 |
| 21.90.50.63 | 358232639 | 0 |
| 21.90.50.64 | 358232640 | 0 |
| 21.90.50.65 | 358232641 | 0 |
| 21.90.50.66 | 358232642 | 0 |
| 21.90.50.67 | 358232643 | 0 |
| 21.90.50.68 | 358232644 | 0 |
| 21.90.50.69 | 358232645 | 0 |
| 21.90.50.70 | 358232646 | 0 |
| 21.90.50.71 | 358232647 | 0 |
| 21.90.50.72 | 358232648 | 0 |
| 21.90.50.73 | 358232649 | 0 |
| 21.90.50.74 | 358232650 | 0 |
| 21.90.50.75 | 358232651 | 0 |
| 21.90.50.76 | 358232652 | 0 |
| 21.90.50.77 | 358232653 | 0 |
| 21.90.50.78 | 358232654 | 0 |
| 21.90.50.79 | 358232655 | 0 |
| 21.90.50.80 | 358232656 | 0 |
| 21.90.50.81 | 358232657 | 0 |
| 21.90.50.82 | 358232658 | 0 |
| 21.90.50.83 | 358232659 | 0 |
| 21.90.50.84 | 358232660 | 0 |
| 21.90.50.85 | 358232661 | 0 |