La dirección IP 21.221.2 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 | 18/10/2018 |

| Código País | País | Región | Ciudad | Latitud | Longitud | Última actualización | |
| IP2Location | ES | España | - | Madrid | 40,4165 | -3,7026 | 2018-10-17 |
| MaxMind | US | Estados Unidos | - | Chicago | 41,9759 | -87,7016 | 2018-10-17 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.221.2.0 | 366805504 | 0 |
| 21.221.2.1 | 366805505 | 0 |
| 21.221.2.2 | 366805506 | 0 |
| 21.221.2.3 | 366805507 | 0 |
| 21.221.2.4 | 366805508 | 0 |
| 21.221.2.5 | 366805509 | 0 |
| 21.221.2.6 | 366805510 | 0 |
| 21.221.2.7 | 366805511 | 0 |
| 21.221.2.8 | 366805512 | 0 |
| 21.221.2.9 | 366805513 | 0 |
| 21.221.2.10 | 366805514 | 0 |
| 21.221.2.11 | 366805515 | 0 |
| 21.221.2.12 | 366805516 | 0 |
| 21.221.2.13 | 366805517 | 0 |
| 21.221.2.14 | 366805518 | 0 |
| 21.221.2.15 | 366805519 | 0 |
| 21.221.2.16 | 366805520 | 0 |
| 21.221.2.17 | 366805521 | 0 |
| 21.221.2.18 | 366805522 | 0 |
| 21.221.2.19 | 366805523 | 0 |
| 21.221.2.20 | 366805524 | 0 |
| 21.221.2.21 | 366805525 | 0 |
| 21.221.2.22 | 366805526 | 0 |
| 21.221.2.23 | 366805527 | 0 |
| 21.221.2.24 | 366805528 | 0 |
| 21.221.2.25 | 366805529 | 0 |
| 21.221.2.26 | 366805530 | 0 |
| 21.221.2.27 | 366805531 | 0 |
| 21.221.2.28 | 366805532 | 0 |
| 21.221.2.29 | 366805533 | 0 |
| 21.221.2.30 | 366805534 | 0 |
| 21.221.2.31 | 366805535 | 0 |
| 21.221.2.32 | 366805536 | 0 |
| 21.221.2.33 | 366805537 | 0 |
| 21.221.2.34 | 366805538 | 0 |
| 21.221.2.35 | 366805539 | 0 |
| 21.221.2.36 | 366805540 | 0 |
| 21.221.2.37 | 366805541 | 0 |
| 21.221.2.38 | 366805542 | 0 |
| 21.221.2.39 | 366805543 | 0 |
| 21.221.2.40 | 366805544 | 0 |
| 21.221.2.41 | 366805545 | 0 |
| 21.221.2.42 | 366805546 | 0 |
| 21.221.2.43 | 366805547 | 0 |
| 21.221.2.44 | 366805548 | 0 |
| 21.221.2.45 | 366805549 | 0 |
| 21.221.2.46 | 366805550 | 0 |
| 21.221.2.47 | 366805551 | 0 |
| 21.221.2.48 | 366805552 | 0 |
| 21.221.2.49 | 366805553 | 0 |
| 21.221.2.50 | 366805554 | 0 |
| 21.221.2.51 | 366805555 | 0 |
| 21.221.2.52 | 366805556 | 0 |
| 21.221.2.53 | 366805557 | 0 |
| 21.221.2.54 | 366805558 | 0 |
| 21.221.2.55 | 366805559 | 0 |
| 21.221.2.56 | 366805560 | 0 |
| 21.221.2.57 | 366805561 | 0 |
| 21.221.2.58 | 366805562 | 0 |
| 21.221.2.59 | 366805563 | 0 |
| 21.221.2.60 | 366805564 | 0 |
| 21.221.2.61 | 366805565 | 0 |
| 21.221.2.62 | 366805566 | 0 |
| 21.221.2.63 | 366805567 | 0 |
| 21.221.2.64 | 366805568 | 0 |
| 21.221.2.65 | 366805569 | 0 |
| 21.221.2.66 | 366805570 | 0 |
| 21.221.2.67 | 366805571 | 0 |
| 21.221.2.68 | 366805572 | 0 |
| 21.221.2.69 | 366805573 | 0 |
| 21.221.2.70 | 366805574 | 0 |
| 21.221.2.71 | 366805575 | 0 |
| 21.221.2.72 | 366805576 | 0 |
| 21.221.2.73 | 366805577 | 0 |
| 21.221.2.74 | 366805578 | 0 |
| 21.221.2.75 | 366805579 | 0 |
| 21.221.2.76 | 366805580 | 0 |
| 21.221.2.77 | 366805581 | 0 |
| 21.221.2.78 | 366805582 | 0 |
| 21.221.2.79 | 366805583 | 0 |
| 21.221.2.80 | 366805584 | 0 |
| 21.221.2.81 | 366805585 | 0 |
| 21.221.2.82 | 366805586 | 0 |
| 21.221.2.83 | 366805587 | 0 |
| 21.221.2.84 | 366805588 | 0 |
| 21.221.2.85 | 366805589 | 0 |