La dirección IP 21.78.20 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 | 16/07/2017 |

| Código País | País | Región | Ciudad | Latitud | Longitud | Última actualización | |
| IP2Location | US | Estados Unidos | - | Columbus | 39,9664 | -83,0128 | 2017-07-16 |
| MaxMind | US | Estados Unidos | - | - | 37,751 | -97,822 | 2017-07-16 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.78.20.0 | 357438464 | 0 |
| 21.78.20.1 | 357438465 | 0 |
| 21.78.20.2 | 357438466 | 0 |
| 21.78.20.3 | 357438467 | 0 |
| 21.78.20.4 | 357438468 | 0 |
| 21.78.20.5 | 357438469 | 0 |
| 21.78.20.6 | 357438470 | 0 |
| 21.78.20.7 | 357438471 | 0 |
| 21.78.20.8 | 357438472 | 0 |
| 21.78.20.9 | 357438473 | 0 |
| 21.78.20.10 | 357438474 | 0 |
| 21.78.20.11 | 357438475 | 0 |
| 21.78.20.12 | 357438476 | 0 |
| 21.78.20.13 | 357438477 | 0 |
| 21.78.20.14 | 357438478 | 0 |
| 21.78.20.15 | 357438479 | 0 |
| 21.78.20.16 | 357438480 | 0 |
| 21.78.20.17 | 357438481 | 0 |
| 21.78.20.18 | 357438482 | 0 |
| 21.78.20.19 | 357438483 | 0 |
| 21.78.20.20 | 357438484 | 0 |
| 21.78.20.21 | 357438485 | 0 |
| 21.78.20.22 | 357438486 | 0 |
| 21.78.20.23 | 357438487 | 0 |
| 21.78.20.24 | 357438488 | 0 |
| 21.78.20.25 | 357438489 | 0 |
| 21.78.20.26 | 357438490 | 0 |
| 21.78.20.27 | 357438491 | 0 |
| 21.78.20.28 | 357438492 | 0 |
| 21.78.20.29 | 357438493 | 0 |
| 21.78.20.30 | 357438494 | 0 |
| 21.78.20.31 | 357438495 | 0 |
| 21.78.20.32 | 357438496 | 0 |
| 21.78.20.33 | 357438497 | 0 |
| 21.78.20.34 | 357438498 | 0 |
| 21.78.20.35 | 357438499 | 0 |
| 21.78.20.36 | 357438500 | 0 |
| 21.78.20.37 | 357438501 | 0 |
| 21.78.20.38 | 357438502 | 0 |
| 21.78.20.39 | 357438503 | 0 |
| 21.78.20.40 | 357438504 | 0 |
| 21.78.20.41 | 357438505 | 0 |
| 21.78.20.42 | 357438506 | 0 |
| 21.78.20.43 | 357438507 | 0 |
| 21.78.20.44 | 357438508 | 0 |
| 21.78.20.45 | 357438509 | 0 |
| 21.78.20.46 | 357438510 | 0 |
| 21.78.20.47 | 357438511 | 0 |
| 21.78.20.48 | 357438512 | 0 |
| 21.78.20.49 | 357438513 | 0 |
| 21.78.20.50 | 357438514 | 0 |
| 21.78.20.51 | 357438515 | 0 |
| 21.78.20.52 | 357438516 | 0 |
| 21.78.20.53 | 357438517 | 0 |
| 21.78.20.54 | 357438518 | 0 |
| 21.78.20.55 | 357438519 | 0 |
| 21.78.20.56 | 357438520 | 0 |
| 21.78.20.57 | 357438521 | 0 |
| 21.78.20.58 | 357438522 | 0 |
| 21.78.20.59 | 357438523 | 0 |
| 21.78.20.60 | 357438524 | 0 |
| 21.78.20.61 | 357438525 | 0 |
| 21.78.20.62 | 357438526 | 0 |
| 21.78.20.63 | 357438527 | 0 |
| 21.78.20.64 | 357438528 | 0 |
| 21.78.20.65 | 357438529 | 0 |
| 21.78.20.66 | 357438530 | 0 |
| 21.78.20.67 | 357438531 | 0 |
| 21.78.20.68 | 357438532 | 0 |
| 21.78.20.69 | 357438533 | 0 |
| 21.78.20.70 | 357438534 | 0 |
| 21.78.20.71 | 357438535 | 0 |
| 21.78.20.72 | 357438536 | 0 |
| 21.78.20.73 | 357438537 | 0 |
| 21.78.20.74 | 357438538 | 0 |
| 21.78.20.75 | 357438539 | 0 |
| 21.78.20.76 | 357438540 | 0 |
| 21.78.20.77 | 357438541 | 0 |
| 21.78.20.78 | 357438542 | 0 |
| 21.78.20.79 | 357438543 | 0 |
| 21.78.20.80 | 357438544 | 0 |
| 21.78.20.81 | 357438545 | 0 |
| 21.78.20.82 | 357438546 | 0 |
| 21.78.20.83 | 357438547 | 0 |
| 21.78.20.84 | 357438548 | 0 |
| 21.78.20.85 | 357438549 | 0 |