The IP address 21.90.38 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 | 04/07/2018 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | US | United States | - | Houston | 29.7633 | -95.3633 | 2018-07-03 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2018-07-03 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.90.38.0 | 358229504 | 0 |
| 21.90.38.1 | 358229505 | 0 |
| 21.90.38.2 | 358229506 | 0 |
| 21.90.38.3 | 358229507 | 0 |
| 21.90.38.4 | 358229508 | 0 |
| 21.90.38.5 | 358229509 | 0 |
| 21.90.38.6 | 358229510 | 0 |
| 21.90.38.7 | 358229511 | 0 |
| 21.90.38.8 | 358229512 | 0 |
| 21.90.38.9 | 358229513 | 0 |
| 21.90.38.10 | 358229514 | 0 |
| 21.90.38.11 | 358229515 | 0 |
| 21.90.38.12 | 358229516 | 0 |
| 21.90.38.13 | 358229517 | 0 |
| 21.90.38.14 | 358229518 | 0 |
| 21.90.38.15 | 358229519 | 0 |
| 21.90.38.16 | 358229520 | 0 |
| 21.90.38.17 | 358229521 | 0 |
| 21.90.38.18 | 358229522 | 0 |
| 21.90.38.19 | 358229523 | 0 |
| 21.90.38.20 | 358229524 | 0 |
| 21.90.38.21 | 358229525 | 0 |
| 21.90.38.22 | 358229526 | 0 |
| 21.90.38.23 | 358229527 | 0 |
| 21.90.38.24 | 358229528 | 0 |
| 21.90.38.25 | 358229529 | 0 |
| 21.90.38.26 | 358229530 | 0 |
| 21.90.38.27 | 358229531 | 0 |
| 21.90.38.28 | 358229532 | 0 |
| 21.90.38.29 | 358229533 | 0 |
| 21.90.38.30 | 358229534 | 0 |
| 21.90.38.31 | 358229535 | 0 |
| 21.90.38.32 | 358229536 | 0 |
| 21.90.38.33 | 358229537 | 0 |
| 21.90.38.34 | 358229538 | 0 |
| 21.90.38.35 | 358229539 | 0 |
| 21.90.38.36 | 358229540 | 0 |
| 21.90.38.37 | 358229541 | 0 |
| 21.90.38.38 | 358229542 | 0 |
| 21.90.38.39 | 358229543 | 0 |
| 21.90.38.40 | 358229544 | 0 |
| 21.90.38.41 | 358229545 | 0 |
| 21.90.38.42 | 358229546 | 0 |
| 21.90.38.43 | 358229547 | 0 |
| 21.90.38.44 | 358229548 | 0 |
| 21.90.38.45 | 358229549 | 0 |
| 21.90.38.46 | 358229550 | 0 |
| 21.90.38.47 | 358229551 | 0 |
| 21.90.38.48 | 358229552 | 0 |
| 21.90.38.49 | 358229553 | 0 |
| 21.90.38.50 | 358229554 | 0 |
| 21.90.38.51 | 358229555 | 0 |
| 21.90.38.52 | 358229556 | 0 |
| 21.90.38.53 | 358229557 | 0 |
| 21.90.38.54 | 358229558 | 0 |
| 21.90.38.55 | 358229559 | 0 |
| 21.90.38.56 | 358229560 | 0 |
| 21.90.38.57 | 358229561 | 0 |
| 21.90.38.58 | 358229562 | 0 |
| 21.90.38.59 | 358229563 | 0 |
| 21.90.38.60 | 358229564 | 0 |
| 21.90.38.61 | 358229565 | 0 |
| 21.90.38.62 | 358229566 | 0 |
| 21.90.38.63 | 358229567 | 0 |
| 21.90.38.64 | 358229568 | 0 |
| 21.90.38.65 | 358229569 | 0 |
| 21.90.38.66 | 358229570 | 0 |
| 21.90.38.67 | 358229571 | 0 |
| 21.90.38.68 | 358229572 | 0 |
| 21.90.38.69 | 358229573 | 0 |
| 21.90.38.70 | 358229574 | 0 |
| 21.90.38.71 | 358229575 | 0 |
| 21.90.38.72 | 358229576 | 0 |
| 21.90.38.73 | 358229577 | 0 |
| 21.90.38.74 | 358229578 | 0 |
| 21.90.38.75 | 358229579 | 0 |
| 21.90.38.76 | 358229580 | 0 |
| 21.90.38.77 | 358229581 | 0 |
| 21.90.38.78 | 358229582 | 0 |
| 21.90.38.79 | 358229583 | 0 |
| 21.90.38.80 | 358229584 | 0 |
| 21.90.38.81 | 358229585 | 0 |
| 21.90.38.82 | 358229586 | 0 |
| 21.90.38.83 | 358229587 | 0 |
| 21.90.38.84 | 358229588 | 0 |
| 21.90.38.85 | 358229589 | 0 |