Les adresses IP débutant par 121.2.157 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 | 15/08/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | JP | Japan | - | Tokyo | 35,6895 | 139,6917 | 2017-08-15 |
| MaxMind | JP | Japon | - | Tokyo | 35,6427 | 139,7677 | 2017-08-15 |
| Whois | JP | - | - | - | 138 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 121.2.157.0 | 2030214400 | 0 |
| 121.2.157.1 | 2030214401 | 0 |
| 121.2.157.2 | 2030214402 | 0 |
| 121.2.157.3 | 2030214403 | 0 |
| 121.2.157.4 | 2030214404 | 0 |
| 121.2.157.5 | 2030214405 | 0 |
| 121.2.157.6 | 2030214406 | 0 |
| 121.2.157.7 | 2030214407 | 0 |
| 121.2.157.8 | 2030214408 | 0 |
| 121.2.157.9 | 2030214409 | 0 |
| 121.2.157.10 | 2030214410 | 0 |
| 121.2.157.11 | 2030214411 | 0 |
| 121.2.157.12 | 2030214412 | 0 |
| 121.2.157.13 | 2030214413 | 0 |
| 121.2.157.14 | 2030214414 | 0 |
| 121.2.157.15 | 2030214415 | 0 |
| 121.2.157.16 | 2030214416 | 0 |
| 121.2.157.17 | 2030214417 | 0 |
| 121.2.157.18 | 2030214418 | 0 |
| 121.2.157.19 | 2030214419 | 0 |
| 121.2.157.20 | 2030214420 | 0 |
| 121.2.157.21 | 2030214421 | 0 |
| 121.2.157.22 | 2030214422 | 0 |
| 121.2.157.23 | 2030214423 | 0 |
| 121.2.157.24 | 2030214424 | 0 |
| 121.2.157.25 | 2030214425 | 0 |
| 121.2.157.26 | 2030214426 | 0 |
| 121.2.157.27 | 2030214427 | 0 |
| 121.2.157.28 | 2030214428 | 0 |
| 121.2.157.29 | 2030214429 | 0 |
| 121.2.157.30 | 2030214430 | 0 |
| 121.2.157.31 | 2030214431 | 0 |
| 121.2.157.32 | 2030214432 | 0 |
| 121.2.157.33 | 2030214433 | 0 |
| 121.2.157.34 | 2030214434 | 0 |
| 121.2.157.35 | 2030214435 | 0 |
| 121.2.157.36 | 2030214436 | 0 |
| 121.2.157.37 | 2030214437 | 0 |
| 121.2.157.38 | 2030214438 | 0 |
| 121.2.157.39 | 2030214439 | 0 |
| 121.2.157.40 | 2030214440 | 0 |
| 121.2.157.41 | 2030214441 | 0 |
| 121.2.157.42 | 2030214442 | 0 |
| 121.2.157.43 | 2030214443 | 0 |
| 121.2.157.44 | 2030214444 | 0 |
| 121.2.157.45 | 2030214445 | 0 |
| 121.2.157.46 | 2030214446 | 0 |
| 121.2.157.47 | 2030214447 | 0 |
| 121.2.157.48 | 2030214448 | 0 |
| 121.2.157.49 | 2030214449 | 0 |
| 121.2.157.50 | 2030214450 | 0 |
| 121.2.157.51 | 2030214451 | 0 |
| 121.2.157.52 | 2030214452 | 0 |
| 121.2.157.53 | 2030214453 | 0 |
| 121.2.157.54 | 2030214454 | 0 |
| 121.2.157.55 | 2030214455 | 0 |
| 121.2.157.56 | 2030214456 | 0 |
| 121.2.157.57 | 2030214457 | 0 |
| 121.2.157.58 | 2030214458 | 0 |
| 121.2.157.59 | 2030214459 | 0 |
| 121.2.157.60 | 2030214460 | 0 |
| 121.2.157.61 | 2030214461 | 0 |
| 121.2.157.62 | 2030214462 | 0 |
| 121.2.157.63 | 2030214463 | 0 |
| 121.2.157.64 | 2030214464 | 0 |
| 121.2.157.65 | 2030214465 | 0 |
| 121.2.157.66 | 2030214466 | 0 |
| 121.2.157.67 | 2030214467 | 0 |
| 121.2.157.68 | 2030214468 | 0 |
| 121.2.157.69 | 2030214469 | 0 |
| 121.2.157.70 | 2030214470 | 0 |
| 121.2.157.71 | 2030214471 | 0 |
| 121.2.157.72 | 2030214472 | 0 |
| 121.2.157.73 | 2030214473 | 0 |
| 121.2.157.74 | 2030214474 | 0 |
| 121.2.157.75 | 2030214475 | 0 |
| 121.2.157.76 | 2030214476 | 0 |
| 121.2.157.77 | 2030214477 | 0 |
| 121.2.157.78 | 2030214478 | 0 |
| 121.2.157.79 | 2030214479 | 0 |
| 121.2.157.80 | 2030214480 | 0 |
| 121.2.157.81 | 2030214481 | 0 |
| 121.2.157.82 | 2030214482 | 0 |
| 121.2.157.83 | 2030214483 | 0 |
| 121.2.157.84 | 2030214484 | 0 |
| 121.2.157.85 | 2030214485 | 0 |