L'indirizzo IP 221.21.55 è fornito da SoftBank BB Corp., che è di proprietà del CIDR (Classless Inter-Domain Routing) 221.16.0.0/12, IP tra 221.16.0.0 a 221.31.255.255 ). Il numero di sistema autonomo (ASN) è 17676.
| ASN | 17676 |
| IP inizia con | 221.16.0.0 |
| IP finale con | 221.31.255.255 |
| ASN Nome | SoftBank BB Corp. |
| CDIR | 221.16.0.0/12 |
| IP numerico | |
| Registe | apnic |
| Ultimo aggiornamento | 16/09/2017 |

| Codice paese | Paese | Regione | Città | Latitude | Longitude | Ultimo aggiornamento | |
| IP2Location | JP | Japan | - | Tokyo | 35,6895 | 139,6917 | 2017-09-16 |
| MaxMind | JP | Japan | - | Tokyo | 35,6427 | 139,7677 | 2017-09-16 |
| Whois | JP | - | - | - | 138 | 36 | |
| W3C | - | - | - | - | - | - | - |
| IP | Numerical IP | DNS |
| 221.21.55.0 | 3709155072 | 0 |
| 221.21.55.1 | 3709155073 | 0 |
| 221.21.55.2 | 3709155074 | 0 |
| 221.21.55.3 | 3709155075 | 0 |
| 221.21.55.4 | 3709155076 | 0 |
| 221.21.55.5 | 3709155077 | 0 |
| 221.21.55.6 | 3709155078 | 0 |
| 221.21.55.7 | 3709155079 | 0 |
| 221.21.55.8 | 3709155080 | 0 |
| 221.21.55.9 | 3709155081 | 0 |
| 221.21.55.10 | 3709155082 | 0 |
| 221.21.55.11 | 3709155083 | 0 |
| 221.21.55.12 | 3709155084 | 0 |
| 221.21.55.13 | 3709155085 | 0 |
| 221.21.55.14 | 3709155086 | 0 |
| 221.21.55.15 | 3709155087 | 0 |
| 221.21.55.16 | 3709155088 | 0 |
| 221.21.55.17 | 3709155089 | 0 |
| 221.21.55.18 | 3709155090 | 0 |
| 221.21.55.19 | 3709155091 | 0 |
| 221.21.55.20 | 3709155092 | 0 |
| 221.21.55.21 | 3709155093 | 0 |
| 221.21.55.22 | 3709155094 | 0 |
| 221.21.55.23 | 3709155095 | 0 |
| 221.21.55.24 | 3709155096 | 0 |
| 221.21.55.25 | 3709155097 | 0 |
| 221.21.55.26 | 3709155098 | 0 |
| 221.21.55.27 | 3709155099 | 0 |
| 221.21.55.28 | 3709155100 | 0 |
| 221.21.55.29 | 3709155101 | 0 |
| 221.21.55.30 | 3709155102 | 0 |
| 221.21.55.31 | 3709155103 | 0 |
| 221.21.55.32 | 3709155104 | 0 |
| 221.21.55.33 | 3709155105 | 0 |
| 221.21.55.34 | 3709155106 | 0 |
| 221.21.55.35 | 3709155107 | 0 |
| 221.21.55.36 | 3709155108 | 0 |
| 221.21.55.37 | 3709155109 | 0 |
| 221.21.55.38 | 3709155110 | 0 |
| 221.21.55.39 | 3709155111 | 0 |
| 221.21.55.40 | 3709155112 | 0 |
| 221.21.55.41 | 3709155113 | 0 |
| 221.21.55.42 | 3709155114 | 0 |
| 221.21.55.43 | 3709155115 | 0 |
| 221.21.55.44 | 3709155116 | 0 |
| 221.21.55.45 | 3709155117 | 0 |
| 221.21.55.46 | 3709155118 | 0 |
| 221.21.55.47 | 3709155119 | 0 |
| 221.21.55.48 | 3709155120 | 0 |
| 221.21.55.49 | 3709155121 | 0 |
| 221.21.55.50 | 3709155122 | 0 |
| 221.21.55.51 | 3709155123 | 0 |
| 221.21.55.52 | 3709155124 | 0 |
| 221.21.55.53 | 3709155125 | 0 |
| 221.21.55.54 | 3709155126 | 0 |
| 221.21.55.55 | 3709155127 | 0 |
| 221.21.55.56 | 3709155128 | 0 |
| 221.21.55.57 | 3709155129 | 0 |
| 221.21.55.58 | 3709155130 | 0 |
| 221.21.55.59 | 3709155131 | 0 |
| 221.21.55.60 | 3709155132 | 0 |
| 221.21.55.61 | 3709155133 | 0 |
| 221.21.55.62 | 3709155134 | 0 |
| 221.21.55.63 | 3709155135 | 0 |
| 221.21.55.64 | 3709155136 | 0 |
| 221.21.55.65 | 3709155137 | 0 |
| 221.21.55.66 | 3709155138 | 0 |
| 221.21.55.67 | 3709155139 | 0 |
| 221.21.55.68 | 3709155140 | 0 |
| 221.21.55.69 | 3709155141 | 0 |
| 221.21.55.70 | 3709155142 | 0 |
| 221.21.55.71 | 3709155143 | 0 |
| 221.21.55.72 | 3709155144 | 0 |
| 221.21.55.73 | 3709155145 | 0 |
| 221.21.55.74 | 3709155146 | 0 |
| 221.21.55.75 | 3709155147 | 0 |
| 221.21.55.76 | 3709155148 | 0 |
| 221.21.55.77 | 3709155149 | 0 |
| 221.21.55.78 | 3709155150 | 0 |
| 221.21.55.79 | 3709155151 | 0 |
| 221.21.55.80 | 3709155152 | 0 |
| 221.21.55.81 | 3709155153 | 0 |
| 221.21.55.82 | 3709155154 | 0 |
| 221.21.55.83 | 3709155155 | 0 |
| 221.21.55.84 | 3709155156 | 0 |
| 221.21.55.85 | 3709155157 | 0 |