La dirección IP 21.99.50 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 | 24/09/2017 |

| Código País | País | Región | Ciudad | Latitud | Longitud | Última actualización | |
| IP2Location | US | Estados Unidos | - | Columbus | 39,9664 | -83,0128 | 2017-09-23 |
| MaxMind | US | Estados Unidos | - | - | 37,751 | -97,822 | 2017-09-23 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.99.50.0 | 358822400 | 0 |
| 21.99.50.1 | 358822401 | 0 |
| 21.99.50.2 | 358822402 | 0 |
| 21.99.50.3 | 358822403 | 0 |
| 21.99.50.4 | 358822404 | 0 |
| 21.99.50.5 | 358822405 | 0 |
| 21.99.50.6 | 358822406 | 0 |
| 21.99.50.7 | 358822407 | 0 |
| 21.99.50.8 | 358822408 | 0 |
| 21.99.50.9 | 358822409 | 0 |
| 21.99.50.10 | 358822410 | 0 |
| 21.99.50.11 | 358822411 | 0 |
| 21.99.50.12 | 358822412 | 0 |
| 21.99.50.13 | 358822413 | 0 |
| 21.99.50.14 | 358822414 | 0 |
| 21.99.50.15 | 358822415 | 0 |
| 21.99.50.16 | 358822416 | 0 |
| 21.99.50.17 | 358822417 | 0 |
| 21.99.50.18 | 358822418 | 0 |
| 21.99.50.19 | 358822419 | 0 |
| 21.99.50.20 | 358822420 | 0 |
| 21.99.50.21 | 358822421 | 0 |
| 21.99.50.22 | 358822422 | 0 |
| 21.99.50.23 | 358822423 | 0 |
| 21.99.50.24 | 358822424 | 0 |
| 21.99.50.25 | 358822425 | 0 |
| 21.99.50.26 | 358822426 | 0 |
| 21.99.50.27 | 358822427 | 0 |
| 21.99.50.28 | 358822428 | 0 |
| 21.99.50.29 | 358822429 | 0 |
| 21.99.50.30 | 358822430 | 0 |
| 21.99.50.31 | 358822431 | 0 |
| 21.99.50.32 | 358822432 | 0 |
| 21.99.50.33 | 358822433 | 0 |
| 21.99.50.34 | 358822434 | 0 |
| 21.99.50.35 | 358822435 | 0 |
| 21.99.50.36 | 358822436 | 0 |
| 21.99.50.37 | 358822437 | 0 |
| 21.99.50.38 | 358822438 | 0 |
| 21.99.50.39 | 358822439 | 0 |
| 21.99.50.40 | 358822440 | 0 |
| 21.99.50.41 | 358822441 | 0 |
| 21.99.50.42 | 358822442 | 0 |
| 21.99.50.43 | 358822443 | 0 |
| 21.99.50.44 | 358822444 | 0 |
| 21.99.50.45 | 358822445 | 0 |
| 21.99.50.46 | 358822446 | 0 |
| 21.99.50.47 | 358822447 | 0 |
| 21.99.50.48 | 358822448 | 0 |
| 21.99.50.49 | 358822449 | 0 |
| 21.99.50.50 | 358822450 | 0 |
| 21.99.50.51 | 358822451 | 0 |
| 21.99.50.52 | 358822452 | 0 |
| 21.99.50.53 | 358822453 | 0 |
| 21.99.50.54 | 358822454 | 0 |
| 21.99.50.55 | 358822455 | 0 |
| 21.99.50.56 | 358822456 | 0 |
| 21.99.50.57 | 358822457 | 0 |
| 21.99.50.58 | 358822458 | 0 |
| 21.99.50.59 | 358822459 | 0 |
| 21.99.50.60 | 358822460 | 0 |
| 21.99.50.61 | 358822461 | 0 |
| 21.99.50.62 | 358822462 | 0 |
| 21.99.50.63 | 358822463 | 0 |
| 21.99.50.64 | 358822464 | 0 |
| 21.99.50.65 | 358822465 | 0 |
| 21.99.50.66 | 358822466 | 0 |
| 21.99.50.67 | 358822467 | 0 |
| 21.99.50.68 | 358822468 | 0 |
| 21.99.50.69 | 358822469 | 0 |
| 21.99.50.70 | 358822470 | 0 |
| 21.99.50.71 | 358822471 | 0 |
| 21.99.50.72 | 358822472 | 0 |
| 21.99.50.73 | 358822473 | 0 |
| 21.99.50.74 | 358822474 | 0 |
| 21.99.50.75 | 358822475 | 0 |
| 21.99.50.76 | 358822476 | 0 |
| 21.99.50.77 | 358822477 | 0 |
| 21.99.50.78 | 358822478 | 0 |
| 21.99.50.79 | 358822479 | 0 |
| 21.99.50.80 | 358822480 | 0 |
| 21.99.50.81 | 358822481 | 0 |
| 21.99.50.82 | 358822482 | 0 |
| 21.99.50.83 | 358822483 | 0 |
| 21.99.50.84 | 358822484 | 0 |
| 21.99.50.85 | 358822485 | 0 |