L'indirizzo IP 21.93.90 è fornito da China Education and Research Network Center, che è di proprietà del CIDR (Classless Inter-Domain Routing) 22.30.204.0/23, IP tra 22.30.204.0 a 22.30.205.255 ). Il numero di sistema autonomo (ASN) è 4538.
| ASN | 4538 |
| IP inizia con | 22.30.204.0 |
| IP finale con | 22.30.205.255 |
| ASN Nome | China Education and Research Network Center |
| CDIR | 22.30.204.0/23 |
| IP numerico | |
| Registe | |
| Ultimo aggiornamento | 28/09/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | US | United States | - | Columbus | 39,9664 | -83,0128 | 2017-09-28 |
| MaxMind | US | United States | - | - | 37,751 | -97,822 | 2017-09-28 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.93.90.0 | 358439424 | 0 |
| 21.93.90.1 | 358439425 | 0 |
| 21.93.90.2 | 358439426 | 0 |
| 21.93.90.3 | 358439427 | 0 |
| 21.93.90.4 | 358439428 | 0 |
| 21.93.90.5 | 358439429 | 0 |
| 21.93.90.6 | 358439430 | 0 |
| 21.93.90.7 | 358439431 | 0 |
| 21.93.90.8 | 358439432 | 0 |
| 21.93.90.9 | 358439433 | 0 |
| 21.93.90.10 | 358439434 | 0 |
| 21.93.90.11 | 358439435 | 0 |
| 21.93.90.12 | 358439436 | 0 |
| 21.93.90.13 | 358439437 | 0 |
| 21.93.90.14 | 358439438 | 0 |
| 21.93.90.15 | 358439439 | 0 |
| 21.93.90.16 | 358439440 | 0 |
| 21.93.90.17 | 358439441 | 0 |
| 21.93.90.18 | 358439442 | 0 |
| 21.93.90.19 | 358439443 | 0 |
| 21.93.90.20 | 358439444 | 0 |
| 21.93.90.21 | 358439445 | 0 |
| 21.93.90.22 | 358439446 | 0 |
| 21.93.90.23 | 358439447 | 0 |
| 21.93.90.24 | 358439448 | 0 |
| 21.93.90.25 | 358439449 | 0 |
| 21.93.90.26 | 358439450 | 0 |
| 21.93.90.27 | 358439451 | 0 |
| 21.93.90.28 | 358439452 | 0 |
| 21.93.90.29 | 358439453 | 0 |
| 21.93.90.30 | 358439454 | 0 |
| 21.93.90.31 | 358439455 | 0 |
| 21.93.90.32 | 358439456 | 0 |
| 21.93.90.33 | 358439457 | 0 |
| 21.93.90.34 | 358439458 | 0 |
| 21.93.90.35 | 358439459 | 0 |
| 21.93.90.36 | 358439460 | 0 |
| 21.93.90.37 | 358439461 | 0 |
| 21.93.90.38 | 358439462 | 0 |
| 21.93.90.39 | 358439463 | 0 |
| 21.93.90.40 | 358439464 | 0 |
| 21.93.90.41 | 358439465 | 0 |
| 21.93.90.42 | 358439466 | 0 |
| 21.93.90.43 | 358439467 | 0 |
| 21.93.90.44 | 358439468 | 0 |
| 21.93.90.45 | 358439469 | 0 |
| 21.93.90.46 | 358439470 | 0 |
| 21.93.90.47 | 358439471 | 0 |
| 21.93.90.48 | 358439472 | 0 |
| 21.93.90.49 | 358439473 | 0 |
| 21.93.90.50 | 358439474 | 0 |
| 21.93.90.51 | 358439475 | 0 |
| 21.93.90.52 | 358439476 | 0 |
| 21.93.90.53 | 358439477 | 0 |
| 21.93.90.54 | 358439478 | 0 |
| 21.93.90.55 | 358439479 | 0 |
| 21.93.90.56 | 358439480 | 0 |
| 21.93.90.57 | 358439481 | 0 |
| 21.93.90.58 | 358439482 | 0 |
| 21.93.90.59 | 358439483 | 0 |
| 21.93.90.60 | 358439484 | 0 |
| 21.93.90.61 | 358439485 | 0 |
| 21.93.90.62 | 358439486 | 0 |
| 21.93.90.63 | 358439487 | 0 |
| 21.93.90.64 | 358439488 | 0 |
| 21.93.90.65 | 358439489 | 0 |
| 21.93.90.66 | 358439490 | 0 |
| 21.93.90.67 | 358439491 | 0 |
| 21.93.90.68 | 358439492 | 0 |
| 21.93.90.69 | 358439493 | 0 |
| 21.93.90.70 | 358439494 | 0 |
| 21.93.90.71 | 358439495 | 0 |
| 21.93.90.72 | 358439496 | 0 |
| 21.93.90.73 | 358439497 | 0 |
| 21.93.90.74 | 358439498 | 0 |
| 21.93.90.75 | 358439499 | 0 |
| 21.93.90.76 | 358439500 | 0 |
| 21.93.90.77 | 358439501 | 0 |
| 21.93.90.78 | 358439502 | 0 |
| 21.93.90.79 | 358439503 | 0 |
| 21.93.90.80 | 358439504 | 0 |
| 21.93.90.81 | 358439505 | 0 |
| 21.93.90.82 | 358439506 | 0 |
| 21.93.90.83 | 358439507 | 0 |
| 21.93.90.84 | 358439508 | 0 |
| 21.93.90.85 | 358439509 | 0 |