L'indirizzo IP 21.255.9 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 | 21/11/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | US | United States | - | Columbus | 39,9664 | -83,0128 | 2017-11-21 |
| MaxMind | US | United States | - | - | 37,751 | -97,822 | 2017-11-21 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.255.9.0 | 369035520 | 0 |
| 21.255.9.1 | 369035521 | 0 |
| 21.255.9.2 | 369035522 | 0 |
| 21.255.9.3 | 369035523 | 0 |
| 21.255.9.4 | 369035524 | 0 |
| 21.255.9.5 | 369035525 | 0 |
| 21.255.9.6 | 369035526 | 0 |
| 21.255.9.7 | 369035527 | 0 |
| 21.255.9.8 | 369035528 | 0 |
| 21.255.9.9 | 369035529 | 0 |
| 21.255.9.10 | 369035530 | 0 |
| 21.255.9.11 | 369035531 | 0 |
| 21.255.9.12 | 369035532 | 0 |
| 21.255.9.13 | 369035533 | 0 |
| 21.255.9.14 | 369035534 | 0 |
| 21.255.9.15 | 369035535 | 0 |
| 21.255.9.16 | 369035536 | 0 |
| 21.255.9.17 | 369035537 | 0 |
| 21.255.9.18 | 369035538 | 0 |
| 21.255.9.19 | 369035539 | 0 |
| 21.255.9.20 | 369035540 | 0 |
| 21.255.9.21 | 369035541 | 0 |
| 21.255.9.22 | 369035542 | 0 |
| 21.255.9.23 | 369035543 | 0 |
| 21.255.9.24 | 369035544 | 0 |
| 21.255.9.25 | 369035545 | 0 |
| 21.255.9.26 | 369035546 | 0 |
| 21.255.9.27 | 369035547 | 0 |
| 21.255.9.28 | 369035548 | 0 |
| 21.255.9.29 | 369035549 | 0 |
| 21.255.9.30 | 369035550 | 0 |
| 21.255.9.31 | 369035551 | 0 |
| 21.255.9.32 | 369035552 | 0 |
| 21.255.9.33 | 369035553 | 0 |
| 21.255.9.34 | 369035554 | 0 |
| 21.255.9.35 | 369035555 | 0 |
| 21.255.9.36 | 369035556 | 0 |
| 21.255.9.37 | 369035557 | 0 |
| 21.255.9.38 | 369035558 | 0 |
| 21.255.9.39 | 369035559 | 0 |
| 21.255.9.40 | 369035560 | 0 |
| 21.255.9.41 | 369035561 | 0 |
| 21.255.9.42 | 369035562 | 0 |
| 21.255.9.43 | 369035563 | 0 |
| 21.255.9.44 | 369035564 | 0 |
| 21.255.9.45 | 369035565 | 0 |
| 21.255.9.46 | 369035566 | 0 |
| 21.255.9.47 | 369035567 | 0 |
| 21.255.9.48 | 369035568 | 0 |
| 21.255.9.49 | 369035569 | 0 |
| 21.255.9.50 | 369035570 | 0 |
| 21.255.9.51 | 369035571 | 0 |
| 21.255.9.52 | 369035572 | 0 |
| 21.255.9.53 | 369035573 | 0 |
| 21.255.9.54 | 369035574 | 0 |
| 21.255.9.55 | 369035575 | 0 |
| 21.255.9.56 | 369035576 | 0 |
| 21.255.9.57 | 369035577 | 0 |
| 21.255.9.58 | 369035578 | 0 |
| 21.255.9.59 | 369035579 | 0 |
| 21.255.9.60 | 369035580 | 0 |
| 21.255.9.61 | 369035581 | 0 |
| 21.255.9.62 | 369035582 | 0 |
| 21.255.9.63 | 369035583 | 0 |
| 21.255.9.64 | 369035584 | 0 |
| 21.255.9.65 | 369035585 | 0 |
| 21.255.9.66 | 369035586 | 0 |
| 21.255.9.67 | 369035587 | 0 |
| 21.255.9.68 | 369035588 | 0 |
| 21.255.9.69 | 369035589 | 0 |
| 21.255.9.70 | 369035590 | 0 |
| 21.255.9.71 | 369035591 | 0 |
| 21.255.9.72 | 369035592 | 0 |
| 21.255.9.73 | 369035593 | 0 |
| 21.255.9.74 | 369035594 | 0 |
| 21.255.9.75 | 369035595 | 0 |
| 21.255.9.76 | 369035596 | 0 |
| 21.255.9.77 | 369035597 | 0 |
| 21.255.9.78 | 369035598 | 0 |
| 21.255.9.79 | 369035599 | 0 |
| 21.255.9.80 | 369035600 | 0 |
| 21.255.9.81 | 369035601 | 0 |
| 21.255.9.82 | 369035602 | 0 |
| 21.255.9.83 | 369035603 | 0 |
| 21.255.9.84 | 369035604 | 0 |
| 21.255.9.85 | 369035605 | 0 |