The IP address 121.83.31 is provided by K-Opticom Corporation, it's belong to the CDIR (Classless Inter-Domain Routing) 121.80.0.0/14 (range 121.80.0.0 to 121.83.255.255). The autonomous system number (ASN) is 17511.
| ASN | 17511 |
| IP starting by | 121.80.0.0 |
| IP ending by | 121.83.255.255 |
| ASN Name | K-Opticom Corporation |
| CDIR | 121.80.0.0/14 |
| Numerical IP | |
| Registry | apnic |
| Last update | 07/08/2017 |

| Country Code | Country | Region | City | Latitude | Longitude | Last update | |
| IP2Location | JP | Japan | - | Otsu | 35.017 | 135.85 | 2017-08-07 |
| MaxMind | JP | Japan | - | Kusatsu | 35.0167 | 135.9667 | 2017-08-07 |
| Whois | JP | - | - | - | 138 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 121.83.31.0 | 2035490560 | 0 |
| 121.83.31.1 | 2035490561 | 0 |
| 121.83.31.2 | 2035490562 | 0 |
| 121.83.31.3 | 2035490563 | 0 |
| 121.83.31.4 | 2035490564 | 0 |
| 121.83.31.5 | 2035490565 | 0 |
| 121.83.31.6 | 2035490566 | 0 |
| 121.83.31.7 | 2035490567 | 0 |
| 121.83.31.8 | 2035490568 | 0 |
| 121.83.31.9 | 2035490569 | 0 |
| 121.83.31.10 | 2035490570 | 0 |
| 121.83.31.11 | 2035490571 | 0 |
| 121.83.31.12 | 2035490572 | 0 |
| 121.83.31.13 | 2035490573 | 0 |
| 121.83.31.14 | 2035490574 | 0 |
| 121.83.31.15 | 2035490575 | 0 |
| 121.83.31.16 | 2035490576 | 0 |
| 121.83.31.17 | 2035490577 | 0 |
| 121.83.31.18 | 2035490578 | 0 |
| 121.83.31.19 | 2035490579 | 0 |
| 121.83.31.20 | 2035490580 | 0 |
| 121.83.31.21 | 2035490581 | 0 |
| 121.83.31.22 | 2035490582 | 0 |
| 121.83.31.23 | 2035490583 | 0 |
| 121.83.31.24 | 2035490584 | 0 |
| 121.83.31.25 | 2035490585 | 0 |
| 121.83.31.26 | 2035490586 | 0 |
| 121.83.31.27 | 2035490587 | 0 |
| 121.83.31.28 | 2035490588 | 0 |
| 121.83.31.29 | 2035490589 | 0 |
| 121.83.31.30 | 2035490590 | 0 |
| 121.83.31.31 | 2035490591 | 0 |
| 121.83.31.32 | 2035490592 | 0 |
| 121.83.31.33 | 2035490593 | 0 |
| 121.83.31.34 | 2035490594 | 0 |
| 121.83.31.35 | 2035490595 | 0 |
| 121.83.31.36 | 2035490596 | 0 |
| 121.83.31.37 | 2035490597 | 0 |
| 121.83.31.38 | 2035490598 | 0 |
| 121.83.31.39 | 2035490599 | 0 |
| 121.83.31.40 | 2035490600 | 0 |
| 121.83.31.41 | 2035490601 | 0 |
| 121.83.31.42 | 2035490602 | 0 |
| 121.83.31.43 | 2035490603 | 0 |
| 121.83.31.44 | 2035490604 | 0 |
| 121.83.31.45 | 2035490605 | 0 |
| 121.83.31.46 | 2035490606 | 0 |
| 121.83.31.47 | 2035490607 | 0 |
| 121.83.31.48 | 2035490608 | 0 |
| 121.83.31.49 | 2035490609 | 0 |
| 121.83.31.50 | 2035490610 | 0 |
| 121.83.31.51 | 2035490611 | 0 |
| 121.83.31.52 | 2035490612 | 0 |
| 121.83.31.53 | 2035490613 | 0 |
| 121.83.31.54 | 2035490614 | 0 |
| 121.83.31.55 | 2035490615 | 0 |
| 121.83.31.56 | 2035490616 | 0 |
| 121.83.31.57 | 2035490617 | 0 |
| 121.83.31.58 | 2035490618 | 0 |
| 121.83.31.59 | 2035490619 | 0 |
| 121.83.31.60 | 2035490620 | 0 |
| 121.83.31.61 | 2035490621 | 0 |
| 121.83.31.62 | 2035490622 | 0 |
| 121.83.31.63 | 2035490623 | 0 |
| 121.83.31.64 | 2035490624 | 0 |
| 121.83.31.65 | 2035490625 | 0 |
| 121.83.31.66 | 2035490626 | 0 |
| 121.83.31.67 | 2035490627 | 0 |
| 121.83.31.68 | 2035490628 | 0 |
| 121.83.31.69 | 2035490629 | 0 |
| 121.83.31.70 | 2035490630 | 0 |
| 121.83.31.71 | 2035490631 | 0 |
| 121.83.31.72 | 2035490632 | 0 |
| 121.83.31.73 | 2035490633 | 0 |
| 121.83.31.74 | 2035490634 | 0 |
| 121.83.31.75 | 2035490635 | 0 |
| 121.83.31.76 | 2035490636 | 0 |
| 121.83.31.77 | 2035490637 | 0 |
| 121.83.31.78 | 2035490638 | 0 |
| 121.83.31.79 | 2035490639 | 0 |
| 121.83.31.80 | 2035490640 | 0 |
| 121.83.31.81 | 2035490641 | 0 |
| 121.83.31.82 | 2035490642 | 0 |
| 121.83.31.83 | 2035490643 | 0 |
| 121.83.31.84 | 2035490644 | 0 |
| 121.83.31.85 | 2035490645 | 0 |