The IP address 21.243.3 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 | 05/11/2019 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | ES | Spain | - | Madrid | 40.4165 | -3.7026 | 2019-11-05 |
| MaxMind | US | United States | - | - | 37.751 | -97.822 | 2019-11-05 |
| Whois | US | - | - | - | -96 | 37 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 21.243.3.0 | 368247552 | 0 |
| 21.243.3.1 | 368247553 | 0 |
| 21.243.3.2 | 368247554 | 0 |
| 21.243.3.3 | 368247555 | 0 |
| 21.243.3.4 | 368247556 | 0 |
| 21.243.3.5 | 368247557 | 0 |
| 21.243.3.6 | 368247558 | 0 |
| 21.243.3.7 | 368247559 | 0 |
| 21.243.3.8 | 368247560 | 0 |
| 21.243.3.9 | 368247561 | 0 |
| 21.243.3.10 | 368247562 | 0 |
| 21.243.3.11 | 368247563 | 0 |
| 21.243.3.12 | 368247564 | 0 |
| 21.243.3.13 | 368247565 | 0 |
| 21.243.3.14 | 368247566 | 0 |
| 21.243.3.15 | 368247567 | 0 |
| 21.243.3.16 | 368247568 | 0 |
| 21.243.3.17 | 368247569 | 0 |
| 21.243.3.18 | 368247570 | 0 |
| 21.243.3.19 | 368247571 | 0 |
| 21.243.3.20 | 368247572 | 0 |
| 21.243.3.21 | 368247573 | 0 |
| 21.243.3.22 | 368247574 | 0 |
| 21.243.3.23 | 368247575 | 0 |
| 21.243.3.24 | 368247576 | 0 |
| 21.243.3.25 | 368247577 | 0 |
| 21.243.3.26 | 368247578 | 0 |
| 21.243.3.27 | 368247579 | 0 |
| 21.243.3.28 | 368247580 | 0 |
| 21.243.3.29 | 368247581 | 0 |
| 21.243.3.30 | 368247582 | 0 |
| 21.243.3.31 | 368247583 | 0 |
| 21.243.3.32 | 368247584 | 0 |
| 21.243.3.33 | 368247585 | 0 |
| 21.243.3.34 | 368247586 | 0 |
| 21.243.3.35 | 368247587 | 0 |
| 21.243.3.36 | 368247588 | 0 |
| 21.243.3.37 | 368247589 | 0 |
| 21.243.3.38 | 368247590 | 0 |
| 21.243.3.39 | 368247591 | 0 |
| 21.243.3.40 | 368247592 | 0 |
| 21.243.3.41 | 368247593 | 0 |
| 21.243.3.42 | 368247594 | 0 |
| 21.243.3.43 | 368247595 | 0 |
| 21.243.3.44 | 368247596 | 0 |
| 21.243.3.45 | 368247597 | 0 |
| 21.243.3.46 | 368247598 | 0 |
| 21.243.3.47 | 368247599 | 0 |
| 21.243.3.48 | 368247600 | 0 |
| 21.243.3.49 | 368247601 | 0 |
| 21.243.3.50 | 368247602 | 0 |
| 21.243.3.51 | 368247603 | 0 |
| 21.243.3.52 | 368247604 | 0 |
| 21.243.3.53 | 368247605 | 0 |
| 21.243.3.54 | 368247606 | 0 |
| 21.243.3.55 | 368247607 | 0 |
| 21.243.3.56 | 368247608 | 0 |
| 21.243.3.57 | 368247609 | 0 |
| 21.243.3.58 | 368247610 | 0 |
| 21.243.3.59 | 368247611 | 0 |
| 21.243.3.60 | 368247612 | 0 |
| 21.243.3.61 | 368247613 | 0 |
| 21.243.3.62 | 368247614 | 0 |
| 21.243.3.63 | 368247615 | 0 |
| 21.243.3.64 | 368247616 | 0 |
| 21.243.3.65 | 368247617 | 0 |
| 21.243.3.66 | 368247618 | 0 |
| 21.243.3.67 | 368247619 | 0 |
| 21.243.3.68 | 368247620 | 0 |
| 21.243.3.69 | 368247621 | 0 |
| 21.243.3.70 | 368247622 | 0 |
| 21.243.3.71 | 368247623 | 0 |
| 21.243.3.72 | 368247624 | 0 |
| 21.243.3.73 | 368247625 | 0 |
| 21.243.3.74 | 368247626 | 0 |
| 21.243.3.75 | 368247627 | 0 |
| 21.243.3.76 | 368247628 | 0 |
| 21.243.3.77 | 368247629 | 0 |
| 21.243.3.78 | 368247630 | 0 |
| 21.243.3.79 | 368247631 | 0 |
| 21.243.3.80 | 368247632 | 0 |
| 21.243.3.81 | 368247633 | 0 |
| 21.243.3.82 | 368247634 | 0 |
| 21.243.3.83 | 368247635 | 0 |
| 21.243.3.84 | 368247636 | 0 |
| 21.243.3.85 | 368247637 | 0 |