Les adresses IP débutant par 121.2.243 sont fournies par So-net Entertainment Corporation, elles appartiennent au CIDR (Classless Inter-Domain Routing) 121.2.0.0/15, le bloc IP comprant les adresses de 121.2.0.0 à 121.3.255.255). Le numéro de système autonome (ASN) est 2527.
| ASN | 2527 |
| IP commençant par | 121.2.0.0 |
| IP se terminant par | 121.3.255.255 |
| Nom ASN | So-net Entertainment Corporation |
| CDIR | 121.2.0.0/15 |
| IP numérique | |
| Registe | apnic |
| Dernière mise à jour | 22/07/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | JP | Japon | - | Nayoro | 44,3558 | 142,4633 | 2017-07-22 |
| MaxMind | JP | Japon | - | Sapporo | 43,0642 | 141,3469 | 2017-07-22 |
| Whois | JP | - | - | - | 138 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 121.2.243.0 | 2030236416 | 0 |
| 121.2.243.1 | 2030236417 | 0 |
| 121.2.243.2 | 2030236418 | 0 |
| 121.2.243.3 | 2030236419 | 0 |
| 121.2.243.4 | 2030236420 | 0 |
| 121.2.243.5 | 2030236421 | 0 |
| 121.2.243.6 | 2030236422 | 0 |
| 121.2.243.7 | 2030236423 | 0 |
| 121.2.243.8 | 2030236424 | 0 |
| 121.2.243.9 | 2030236425 | 0 |
| 121.2.243.10 | 2030236426 | 0 |
| 121.2.243.11 | 2030236427 | 0 |
| 121.2.243.12 | 2030236428 | 0 |
| 121.2.243.13 | 2030236429 | 0 |
| 121.2.243.14 | 2030236430 | 0 |
| 121.2.243.15 | 2030236431 | 0 |
| 121.2.243.16 | 2030236432 | 0 |
| 121.2.243.17 | 2030236433 | 0 |
| 121.2.243.18 | 2030236434 | 0 |
| 121.2.243.19 | 2030236435 | 0 |
| 121.2.243.20 | 2030236436 | 0 |
| 121.2.243.21 | 2030236437 | 0 |
| 121.2.243.22 | 2030236438 | 0 |
| 121.2.243.23 | 2030236439 | 0 |
| 121.2.243.24 | 2030236440 | 0 |
| 121.2.243.25 | 2030236441 | 0 |
| 121.2.243.26 | 2030236442 | 0 |
| 121.2.243.27 | 2030236443 | 0 |
| 121.2.243.28 | 2030236444 | 0 |
| 121.2.243.29 | 2030236445 | 0 |
| 121.2.243.30 | 2030236446 | 0 |
| 121.2.243.31 | 2030236447 | 0 |
| 121.2.243.32 | 2030236448 | 0 |
| 121.2.243.33 | 2030236449 | 0 |
| 121.2.243.34 | 2030236450 | 0 |
| 121.2.243.35 | 2030236451 | 0 |
| 121.2.243.36 | 2030236452 | 0 |
| 121.2.243.37 | 2030236453 | 0 |
| 121.2.243.38 | 2030236454 | 0 |
| 121.2.243.39 | 2030236455 | 0 |
| 121.2.243.40 | 2030236456 | 0 |
| 121.2.243.41 | 2030236457 | 0 |
| 121.2.243.42 | 2030236458 | 0 |
| 121.2.243.43 | 2030236459 | 0 |
| 121.2.243.44 | 2030236460 | 0 |
| 121.2.243.45 | 2030236461 | 0 |
| 121.2.243.46 | 2030236462 | 0 |
| 121.2.243.47 | 2030236463 | 0 |
| 121.2.243.48 | 2030236464 | 0 |
| 121.2.243.49 | 2030236465 | 0 |
| 121.2.243.50 | 2030236466 | 0 |
| 121.2.243.51 | 2030236467 | 0 |
| 121.2.243.52 | 2030236468 | 0 |
| 121.2.243.53 | 2030236469 | 0 |
| 121.2.243.54 | 2030236470 | 0 |
| 121.2.243.55 | 2030236471 | 0 |
| 121.2.243.56 | 2030236472 | 0 |
| 121.2.243.57 | 2030236473 | 0 |
| 121.2.243.58 | 2030236474 | 0 |
| 121.2.243.59 | 2030236475 | 0 |
| 121.2.243.60 | 2030236476 | 0 |
| 121.2.243.61 | 2030236477 | 0 |
| 121.2.243.62 | 2030236478 | 0 |
| 121.2.243.63 | 2030236479 | 0 |
| 121.2.243.64 | 2030236480 | 0 |
| 121.2.243.65 | 2030236481 | 0 |
| 121.2.243.66 | 2030236482 | 0 |
| 121.2.243.67 | 2030236483 | 0 |
| 121.2.243.68 | 2030236484 | 0 |
| 121.2.243.69 | 2030236485 | 0 |
| 121.2.243.70 | 2030236486 | 0 |
| 121.2.243.71 | 2030236487 | 0 |
| 121.2.243.72 | 2030236488 | 0 |
| 121.2.243.73 | 2030236489 | 0 |
| 121.2.243.74 | 2030236490 | 0 |
| 121.2.243.75 | 2030236491 | 0 |
| 121.2.243.76 | 2030236492 | 0 |
| 121.2.243.77 | 2030236493 | 0 |
| 121.2.243.78 | 2030236494 | 0 |
| 121.2.243.79 | 2030236495 | 0 |
| 121.2.243.80 | 2030236496 | 0 |
| 121.2.243.81 | 2030236497 | 0 |
| 121.2.243.82 | 2030236498 | 0 |
| 121.2.243.83 | 2030236499 | 0 |
| 121.2.243.84 | 2030236500 | 0 |
| 121.2.243.85 | 2030236501 | 0 |