The IP address 21.89.28 is provided by China Education and Research Network Center, it's belong to the CDIR (Classless Inter-Domain Routing) 22.30.204.0/23 (range 22.30.204.0 to 22.30.205.255). The autonomous system number (ASN) is 4538.
| ASN | 4538 |
| IP starting by | 22.30.204.0 |
| IP ending by | 22.30.205.255 |
| ASN Name | China Education and Research Network Center |
| CDIR | 22.30.204.0/23 |
| Numerical IP | |
| Registry | |
| Last update | 09/08/2017 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Columbus | 39.9664 | -83.0128 | 2017-08-09 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2017-08-09 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.89.28.0 | 358161408 | 0 |
| 21.89.28.1 | 358161409 | 0 |
| 21.89.28.2 | 358161410 | 0 |
| 21.89.28.3 | 358161411 | 0 |
| 21.89.28.4 | 358161412 | 0 |
| 21.89.28.5 | 358161413 | 0 |
| 21.89.28.6 | 358161414 | 0 |
| 21.89.28.7 | 358161415 | 0 |
| 21.89.28.8 | 358161416 | 0 |
| 21.89.28.9 | 358161417 | 0 |
| 21.89.28.10 | 358161418 | 0 |
| 21.89.28.11 | 358161419 | 0 |
| 21.89.28.12 | 358161420 | 0 |
| 21.89.28.13 | 358161421 | 0 |
| 21.89.28.14 | 358161422 | 0 |
| 21.89.28.15 | 358161423 | 0 |
| 21.89.28.16 | 358161424 | 0 |
| 21.89.28.17 | 358161425 | 0 |
| 21.89.28.18 | 358161426 | 0 |
| 21.89.28.19 | 358161427 | 0 |
| 21.89.28.20 | 358161428 | 0 |
| 21.89.28.21 | 358161429 | 0 |
| 21.89.28.22 | 358161430 | 0 |
| 21.89.28.23 | 358161431 | 0 |
| 21.89.28.24 | 358161432 | 0 |
| 21.89.28.25 | 358161433 | 0 |
| 21.89.28.26 | 358161434 | 0 |
| 21.89.28.27 | 358161435 | 0 |
| 21.89.28.28 | 358161436 | 0 |
| 21.89.28.29 | 358161437 | 0 |
| 21.89.28.30 | 358161438 | 0 |
| 21.89.28.31 | 358161439 | 0 |
| 21.89.28.32 | 358161440 | 0 |
| 21.89.28.33 | 358161441 | 0 |
| 21.89.28.34 | 358161442 | 0 |
| 21.89.28.35 | 358161443 | 0 |
| 21.89.28.36 | 358161444 | 0 |
| 21.89.28.37 | 358161445 | 0 |
| 21.89.28.38 | 358161446 | 0 |
| 21.89.28.39 | 358161447 | 0 |
| 21.89.28.40 | 358161448 | 0 |
| 21.89.28.41 | 358161449 | 0 |
| 21.89.28.42 | 358161450 | 0 |
| 21.89.28.43 | 358161451 | 0 |
| 21.89.28.44 | 358161452 | 0 |
| 21.89.28.45 | 358161453 | 0 |
| 21.89.28.46 | 358161454 | 0 |
| 21.89.28.47 | 358161455 | 0 |
| 21.89.28.48 | 358161456 | 0 |
| 21.89.28.49 | 358161457 | 0 |
| 21.89.28.50 | 358161458 | 0 |
| 21.89.28.51 | 358161459 | 0 |
| 21.89.28.52 | 358161460 | 0 |
| 21.89.28.53 | 358161461 | 0 |
| 21.89.28.54 | 358161462 | 0 |
| 21.89.28.55 | 358161463 | 0 |
| 21.89.28.56 | 358161464 | 0 |
| 21.89.28.57 | 358161465 | 0 |
| 21.89.28.58 | 358161466 | 0 |
| 21.89.28.59 | 358161467 | 0 |
| 21.89.28.60 | 358161468 | 0 |
| 21.89.28.61 | 358161469 | 0 |
| 21.89.28.62 | 358161470 | 0 |
| 21.89.28.63 | 358161471 | 0 |
| 21.89.28.64 | 358161472 | 0 |
| 21.89.28.65 | 358161473 | 0 |
| 21.89.28.66 | 358161474 | 0 |
| 21.89.28.67 | 358161475 | 0 |
| 21.89.28.68 | 358161476 | 0 |
| 21.89.28.69 | 358161477 | 0 |
| 21.89.28.70 | 358161478 | 0 |
| 21.89.28.71 | 358161479 | 0 |
| 21.89.28.72 | 358161480 | 0 |
| 21.89.28.73 | 358161481 | 0 |
| 21.89.28.74 | 358161482 | 0 |
| 21.89.28.75 | 358161483 | 0 |
| 21.89.28.76 | 358161484 | 0 |
| 21.89.28.77 | 358161485 | 0 |
| 21.89.28.78 | 358161486 | 0 |
| 21.89.28.79 | 358161487 | 0 |
| 21.89.28.80 | 358161488 | 0 |
| 21.89.28.81 | 358161489 | 0 |
| 21.89.28.82 | 358161490 | 0 |
| 21.89.28.83 | 358161491 | 0 |
| 21.89.28.84 | 358161492 | 0 |
| 21.89.28.85 | 358161493 | 0 |