Die IP-Adresse 121.2.255 erfolgt über So-net Entertainment Corporation, es hat gehören zu den GGDV (Classless Inter-Domain Routing) 121.2.0.0/15 (Bereich 121.2.0.0, 121.3.255.255). Die autonomen Systemnummer (ASN) ist 2527.
| ASN | 2527 |
| Ausgehend von IP | 121.2.0.0 |
| Beendigung durch IP | 121.3.255.255 |
| ASN-Namen | So-net Entertainment Corporation |
| GGDV | 121.2.0.0/15 |
| Numerische IP | |
| Registrierung | apnic |
| Letztes update | 28.01.2018 |

| Vorwahl des Landes | Land | Region | Stadt | Breitengrad | Länge | Letztes update | |
| IP2Location | JP | Japan | - | Yokohama | 35,4442 | 139,6381 | 2018-01-28 |
| MaxMind | JP | Japan | - | Tokio | 35,6427 | 139,7677 | 2018-01-28 |
| Whois | JP | - | - | - | 138 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 121.2.255.0 | 2030239488 | 0 |
| 121.2.255.1 | 2030239489 | 0 |
| 121.2.255.2 | 2030239490 | 0 |
| 121.2.255.3 | 2030239491 | 0 |
| 121.2.255.4 | 2030239492 | 0 |
| 121.2.255.5 | 2030239493 | 0 |
| 121.2.255.6 | 2030239494 | 0 |
| 121.2.255.7 | 2030239495 | 0 |
| 121.2.255.8 | 2030239496 | 0 |
| 121.2.255.9 | 2030239497 | 0 |
| 121.2.255.10 | 2030239498 | 0 |
| 121.2.255.11 | 2030239499 | 0 |
| 121.2.255.12 | 2030239500 | 0 |
| 121.2.255.13 | 2030239501 | 0 |
| 121.2.255.14 | 2030239502 | 0 |
| 121.2.255.15 | 2030239503 | 0 |
| 121.2.255.16 | 2030239504 | 0 |
| 121.2.255.17 | 2030239505 | 0 |
| 121.2.255.18 | 2030239506 | 0 |
| 121.2.255.19 | 2030239507 | 0 |
| 121.2.255.20 | 2030239508 | 0 |
| 121.2.255.21 | 2030239509 | 0 |
| 121.2.255.22 | 2030239510 | 0 |
| 121.2.255.23 | 2030239511 | 0 |
| 121.2.255.24 | 2030239512 | 0 |
| 121.2.255.25 | 2030239513 | 0 |
| 121.2.255.26 | 2030239514 | 0 |
| 121.2.255.27 | 2030239515 | 0 |
| 121.2.255.28 | 2030239516 | 0 |
| 121.2.255.29 | 2030239517 | 0 |
| 121.2.255.30 | 2030239518 | 0 |
| 121.2.255.31 | 2030239519 | 0 |
| 121.2.255.32 | 2030239520 | 0 |
| 121.2.255.33 | 2030239521 | 0 |
| 121.2.255.34 | 2030239522 | 0 |
| 121.2.255.35 | 2030239523 | 0 |
| 121.2.255.36 | 2030239524 | 0 |
| 121.2.255.37 | 2030239525 | 0 |
| 121.2.255.38 | 2030239526 | 0 |
| 121.2.255.39 | 2030239527 | 0 |
| 121.2.255.40 | 2030239528 | 0 |
| 121.2.255.41 | 2030239529 | 0 |
| 121.2.255.42 | 2030239530 | 0 |
| 121.2.255.43 | 2030239531 | 0 |
| 121.2.255.44 | 2030239532 | 0 |
| 121.2.255.45 | 2030239533 | 0 |
| 121.2.255.46 | 2030239534 | 0 |
| 121.2.255.47 | 2030239535 | 0 |
| 121.2.255.48 | 2030239536 | 0 |
| 121.2.255.49 | 2030239537 | 0 |
| 121.2.255.50 | 2030239538 | 0 |
| 121.2.255.51 | 2030239539 | 0 |
| 121.2.255.52 | 2030239540 | 0 |
| 121.2.255.53 | 2030239541 | 0 |
| 121.2.255.54 | 2030239542 | 0 |
| 121.2.255.55 | 2030239543 | 0 |
| 121.2.255.56 | 2030239544 | 0 |
| 121.2.255.57 | 2030239545 | 0 |
| 121.2.255.58 | 2030239546 | 0 |
| 121.2.255.59 | 2030239547 | 0 |
| 121.2.255.60 | 2030239548 | 0 |
| 121.2.255.61 | 2030239549 | 0 |
| 121.2.255.62 | 2030239550 | 0 |
| 121.2.255.63 | 2030239551 | 0 |
| 121.2.255.64 | 2030239552 | 0 |
| 121.2.255.65 | 2030239553 | 0 |
| 121.2.255.66 | 2030239554 | 0 |
| 121.2.255.67 | 2030239555 | 0 |
| 121.2.255.68 | 2030239556 | 0 |
| 121.2.255.69 | 2030239557 | 0 |
| 121.2.255.70 | 2030239558 | 0 |
| 121.2.255.71 | 2030239559 | 0 |
| 121.2.255.72 | 2030239560 | 0 |
| 121.2.255.73 | 2030239561 | 0 |
| 121.2.255.74 | 2030239562 | 0 |
| 121.2.255.75 | 2030239563 | 0 |
| 121.2.255.76 | 2030239564 | 0 |
| 121.2.255.77 | 2030239565 | 0 |
| 121.2.255.78 | 2030239566 | 0 |
| 121.2.255.79 | 2030239567 | 0 |
| 121.2.255.80 | 2030239568 | 0 |
| 121.2.255.81 | 2030239569 | 0 |
| 121.2.255.82 | 2030239570 | 0 |
| 121.2.255.83 | 2030239571 | 0 |
| 121.2.255.84 | 2030239572 | 0 |
| 121.2.255.85 | 2030239573 | 0 |