The IP address 21.231.4 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 | 19/07/2018 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | ES | Spain | - | Madrid | 40.4165 | -3.7026 | 2018-07-18 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2018-07-18 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.231.4.0 | 367461376 | 0 |
| 21.231.4.1 | 367461377 | 0 |
| 21.231.4.2 | 367461378 | 0 |
| 21.231.4.3 | 367461379 | 0 |
| 21.231.4.4 | 367461380 | 0 |
| 21.231.4.5 | 367461381 | 0 |
| 21.231.4.6 | 367461382 | 0 |
| 21.231.4.7 | 367461383 | 0 |
| 21.231.4.8 | 367461384 | 0 |
| 21.231.4.9 | 367461385 | 0 |
| 21.231.4.10 | 367461386 | 0 |
| 21.231.4.11 | 367461387 | 0 |
| 21.231.4.12 | 367461388 | 0 |
| 21.231.4.13 | 367461389 | 0 |
| 21.231.4.14 | 367461390 | 0 |
| 21.231.4.15 | 367461391 | 0 |
| 21.231.4.16 | 367461392 | 0 |
| 21.231.4.17 | 367461393 | 0 |
| 21.231.4.18 | 367461394 | 0 |
| 21.231.4.19 | 367461395 | 0 |
| 21.231.4.20 | 367461396 | 0 |
| 21.231.4.21 | 367461397 | 0 |
| 21.231.4.22 | 367461398 | 0 |
| 21.231.4.23 | 367461399 | 0 |
| 21.231.4.24 | 367461400 | 0 |
| 21.231.4.25 | 367461401 | 0 |
| 21.231.4.26 | 367461402 | 0 |
| 21.231.4.27 | 367461403 | 0 |
| 21.231.4.28 | 367461404 | 0 |
| 21.231.4.29 | 367461405 | 0 |
| 21.231.4.30 | 367461406 | 0 |
| 21.231.4.31 | 367461407 | 0 |
| 21.231.4.32 | 367461408 | 0 |
| 21.231.4.33 | 367461409 | 0 |
| 21.231.4.34 | 367461410 | 0 |
| 21.231.4.35 | 367461411 | 0 |
| 21.231.4.36 | 367461412 | 0 |
| 21.231.4.37 | 367461413 | 0 |
| 21.231.4.38 | 367461414 | 0 |
| 21.231.4.39 | 367461415 | 0 |
| 21.231.4.40 | 367461416 | 0 |
| 21.231.4.41 | 367461417 | 0 |
| 21.231.4.42 | 367461418 | 0 |
| 21.231.4.43 | 367461419 | 0 |
| 21.231.4.44 | 367461420 | 0 |
| 21.231.4.45 | 367461421 | 0 |
| 21.231.4.46 | 367461422 | 0 |
| 21.231.4.47 | 367461423 | 0 |
| 21.231.4.48 | 367461424 | 0 |
| 21.231.4.49 | 367461425 | 0 |
| 21.231.4.50 | 367461426 | 0 |
| 21.231.4.51 | 367461427 | 0 |
| 21.231.4.52 | 367461428 | 0 |
| 21.231.4.53 | 367461429 | 0 |
| 21.231.4.54 | 367461430 | 0 |
| 21.231.4.55 | 367461431 | 0 |
| 21.231.4.56 | 367461432 | 0 |
| 21.231.4.57 | 367461433 | 0 |
| 21.231.4.58 | 367461434 | 0 |
| 21.231.4.59 | 367461435 | 0 |
| 21.231.4.60 | 367461436 | 0 |
| 21.231.4.61 | 367461437 | 0 |
| 21.231.4.62 | 367461438 | 0 |
| 21.231.4.63 | 367461439 | 0 |
| 21.231.4.64 | 367461440 | 0 |
| 21.231.4.65 | 367461441 | 0 |
| 21.231.4.66 | 367461442 | 0 |
| 21.231.4.67 | 367461443 | 0 |
| 21.231.4.68 | 367461444 | 0 |
| 21.231.4.69 | 367461445 | 0 |
| 21.231.4.70 | 367461446 | 0 |
| 21.231.4.71 | 367461447 | 0 |
| 21.231.4.72 | 367461448 | 0 |
| 21.231.4.73 | 367461449 | 0 |
| 21.231.4.74 | 367461450 | 0 |
| 21.231.4.75 | 367461451 | 0 |
| 21.231.4.76 | 367461452 | 0 |
| 21.231.4.77 | 367461453 | 0 |
| 21.231.4.78 | 367461454 | 0 |
| 21.231.4.79 | 367461455 | 0 |
| 21.231.4.80 | 367461456 | 0 |
| 21.231.4.81 | 367461457 | 0 |
| 21.231.4.82 | 367461458 | 0 |
| 21.231.4.83 | 367461459 | 0 |
| 21.231.4.84 | 367461460 | 0 |
| 21.231.4.85 | 367461461 | 0 |