Les adresses IP débutant par 121.2.141 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 | 05/07/2017 |

| Code pays | Pays | Région | Ville | Latitude | Longitude | Dernière mise à jour | |
| IP2Location | JP | Japan | - | Tokyo | 35,6895 | 139,6917 | 2017-07-05 |
| MaxMind | JP | Japon | - | Tokyo | 35,6427 | 139,7677 | 2017-07-05 |
| Whois | JP | - | - | - | 138 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 121.2.141.0 | 2030210304 | 0 |
| 121.2.141.1 | 2030210305 | 0 |
| 121.2.141.2 | 2030210306 | 0 |
| 121.2.141.3 | 2030210307 | 0 |
| 121.2.141.4 | 2030210308 | 0 |
| 121.2.141.5 | 2030210309 | 0 |
| 121.2.141.6 | 2030210310 | 0 |
| 121.2.141.7 | 2030210311 | 0 |
| 121.2.141.8 | 2030210312 | 0 |
| 121.2.141.9 | 2030210313 | 0 |
| 121.2.141.10 | 2030210314 | 0 |
| 121.2.141.11 | 2030210315 | 0 |
| 121.2.141.12 | 2030210316 | 0 |
| 121.2.141.13 | 2030210317 | 0 |
| 121.2.141.14 | 2030210318 | 0 |
| 121.2.141.15 | 2030210319 | 0 |
| 121.2.141.16 | 2030210320 | 0 |
| 121.2.141.17 | 2030210321 | 0 |
| 121.2.141.18 | 2030210322 | 0 |
| 121.2.141.19 | 2030210323 | 0 |
| 121.2.141.20 | 2030210324 | 0 |
| 121.2.141.21 | 2030210325 | 0 |
| 121.2.141.22 | 2030210326 | 0 |
| 121.2.141.23 | 2030210327 | 0 |
| 121.2.141.24 | 2030210328 | 0 |
| 121.2.141.25 | 2030210329 | 0 |
| 121.2.141.26 | 2030210330 | 0 |
| 121.2.141.27 | 2030210331 | 0 |
| 121.2.141.28 | 2030210332 | 0 |
| 121.2.141.29 | 2030210333 | 0 |
| 121.2.141.30 | 2030210334 | 0 |
| 121.2.141.31 | 2030210335 | 0 |
| 121.2.141.32 | 2030210336 | 0 |
| 121.2.141.33 | 2030210337 | 0 |
| 121.2.141.34 | 2030210338 | 0 |
| 121.2.141.35 | 2030210339 | 0 |
| 121.2.141.36 | 2030210340 | 0 |
| 121.2.141.37 | 2030210341 | 0 |
| 121.2.141.38 | 2030210342 | 0 |
| 121.2.141.39 | 2030210343 | 0 |
| 121.2.141.40 | 2030210344 | 0 |
| 121.2.141.41 | 2030210345 | 0 |
| 121.2.141.42 | 2030210346 | 0 |
| 121.2.141.43 | 2030210347 | 0 |
| 121.2.141.44 | 2030210348 | 0 |
| 121.2.141.45 | 2030210349 | 0 |
| 121.2.141.46 | 2030210350 | 0 |
| 121.2.141.47 | 2030210351 | 0 |
| 121.2.141.48 | 2030210352 | 0 |
| 121.2.141.49 | 2030210353 | 0 |
| 121.2.141.50 | 2030210354 | 0 |
| 121.2.141.51 | 2030210355 | 0 |
| 121.2.141.52 | 2030210356 | 0 |
| 121.2.141.53 | 2030210357 | 0 |
| 121.2.141.54 | 2030210358 | 0 |
| 121.2.141.55 | 2030210359 | 0 |
| 121.2.141.56 | 2030210360 | 0 |
| 121.2.141.57 | 2030210361 | 0 |
| 121.2.141.58 | 2030210362 | 0 |
| 121.2.141.59 | 2030210363 | 0 |
| 121.2.141.60 | 2030210364 | 0 |
| 121.2.141.61 | 2030210365 | 0 |
| 121.2.141.62 | 2030210366 | 0 |
| 121.2.141.63 | 2030210367 | 0 |
| 121.2.141.64 | 2030210368 | 0 |
| 121.2.141.65 | 2030210369 | 0 |
| 121.2.141.66 | 2030210370 | 0 |
| 121.2.141.67 | 2030210371 | 0 |
| 121.2.141.68 | 2030210372 | 0 |
| 121.2.141.69 | 2030210373 | 0 |
| 121.2.141.70 | 2030210374 | 0 |
| 121.2.141.71 | 2030210375 | 0 |
| 121.2.141.72 | 2030210376 | 0 |
| 121.2.141.73 | 2030210377 | 0 |
| 121.2.141.74 | 2030210378 | 0 |
| 121.2.141.75 | 2030210379 | 0 |
| 121.2.141.76 | 2030210380 | 0 |
| 121.2.141.77 | 2030210381 | 0 |
| 121.2.141.78 | 2030210382 | 0 |
| 121.2.141.79 | 2030210383 | 0 |
| 121.2.141.80 | 2030210384 | 0 |
| 121.2.141.81 | 2030210385 | 0 |
| 121.2.141.82 | 2030210386 | 0 |
| 121.2.141.83 | 2030210387 | 0 |
| 121.2.141.84 | 2030210388 | 0 |
| 121.2.141.85 | 2030210389 | 0 |