L'indirizzo IP 21.9.188 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 | 29/08/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | US | United States | - | Columbus | 39,9664 | -83,0128 | 2017-08-28 |
| MaxMind | US | United States | - | - | 37,751 | -97,822 | 2017-08-28 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.9.188.0 | 352959488 | 0 |
| 21.9.188.1 | 352959489 | 0 |
| 21.9.188.2 | 352959490 | 0 |
| 21.9.188.3 | 352959491 | 0 |
| 21.9.188.4 | 352959492 | 0 |
| 21.9.188.5 | 352959493 | 0 |
| 21.9.188.6 | 352959494 | 0 |
| 21.9.188.7 | 352959495 | 0 |
| 21.9.188.8 | 352959496 | 0 |
| 21.9.188.9 | 352959497 | 0 |
| 21.9.188.10 | 352959498 | 0 |
| 21.9.188.11 | 352959499 | 0 |
| 21.9.188.12 | 352959500 | 0 |
| 21.9.188.13 | 352959501 | 0 |
| 21.9.188.14 | 352959502 | 0 |
| 21.9.188.15 | 352959503 | 0 |
| 21.9.188.16 | 352959504 | 0 |
| 21.9.188.17 | 352959505 | 0 |
| 21.9.188.18 | 352959506 | 0 |
| 21.9.188.19 | 352959507 | 0 |
| 21.9.188.20 | 352959508 | 0 |
| 21.9.188.21 | 352959509 | 0 |
| 21.9.188.22 | 352959510 | 0 |
| 21.9.188.23 | 352959511 | 0 |
| 21.9.188.24 | 352959512 | 0 |
| 21.9.188.25 | 352959513 | 0 |
| 21.9.188.26 | 352959514 | 0 |
| 21.9.188.27 | 352959515 | 0 |
| 21.9.188.28 | 352959516 | 0 |
| 21.9.188.29 | 352959517 | 0 |
| 21.9.188.30 | 352959518 | 0 |
| 21.9.188.31 | 352959519 | 0 |
| 21.9.188.32 | 352959520 | 0 |
| 21.9.188.33 | 352959521 | 0 |
| 21.9.188.34 | 352959522 | 0 |
| 21.9.188.35 | 352959523 | 0 |
| 21.9.188.36 | 352959524 | 0 |
| 21.9.188.37 | 352959525 | 0 |
| 21.9.188.38 | 352959526 | 0 |
| 21.9.188.39 | 352959527 | 0 |
| 21.9.188.40 | 352959528 | 0 |
| 21.9.188.41 | 352959529 | 0 |
| 21.9.188.42 | 352959530 | 0 |
| 21.9.188.43 | 352959531 | 0 |
| 21.9.188.44 | 352959532 | 0 |
| 21.9.188.45 | 352959533 | 0 |
| 21.9.188.46 | 352959534 | 0 |
| 21.9.188.47 | 352959535 | 0 |
| 21.9.188.48 | 352959536 | 0 |
| 21.9.188.49 | 352959537 | 0 |
| 21.9.188.50 | 352959538 | 0 |
| 21.9.188.51 | 352959539 | 0 |
| 21.9.188.52 | 352959540 | 0 |
| 21.9.188.53 | 352959541 | 0 |
| 21.9.188.54 | 352959542 | 0 |
| 21.9.188.55 | 352959543 | 0 |
| 21.9.188.56 | 352959544 | 0 |
| 21.9.188.57 | 352959545 | 0 |
| 21.9.188.58 | 352959546 | 0 |
| 21.9.188.59 | 352959547 | 0 |
| 21.9.188.60 | 352959548 | 0 |
| 21.9.188.61 | 352959549 | 0 |
| 21.9.188.62 | 352959550 | 0 |
| 21.9.188.63 | 352959551 | 0 |
| 21.9.188.64 | 352959552 | 0 |
| 21.9.188.65 | 352959553 | 0 |
| 21.9.188.66 | 352959554 | 0 |
| 21.9.188.67 | 352959555 | 0 |
| 21.9.188.68 | 352959556 | 0 |
| 21.9.188.69 | 352959557 | 0 |
| 21.9.188.70 | 352959558 | 0 |
| 21.9.188.71 | 352959559 | 0 |
| 21.9.188.72 | 352959560 | 0 |
| 21.9.188.73 | 352959561 | 0 |
| 21.9.188.74 | 352959562 | 0 |
| 21.9.188.75 | 352959563 | 0 |
| 21.9.188.76 | 352959564 | 0 |
| 21.9.188.77 | 352959565 | 0 |
| 21.9.188.78 | 352959566 | 0 |
| 21.9.188.79 | 352959567 | 0 |
| 21.9.188.80 | 352959568 | 0 |
| 21.9.188.81 | 352959569 | 0 |
| 21.9.188.82 | 352959570 | 0 |
| 21.9.188.83 | 352959571 | 0 |
| 21.9.188.84 | 352959572 | 0 |
| 21.9.188.85 | 352959573 | 0 |