168.21.168开头的IP是哪里的IP,IP地址列表: 168.21.168.* (168.21.168.0 - 168.21.168.254)

这是第一个字节为168，第二个字节为21，第三个字节为168，第四个字节在0 - 255之间的IP地址列表，表示为168.21.168.* (168.21.168.0 - 168.21.168.255)。

这个IP地址列表中包含256个IP地址，我们以其中一个IP地址168.21.168.1为例，来描述这个IP的属性：

第一个IP地址例子

但这只是其中1个IP地址的例子，并不代表这个列表中所有的IP地址都有同样的属性，如果需要了解其它IP和更详细的IP地址段信息，请点击下面列表中的标题链接。

内容:

• 1. 第一个IP地址例子
• 2. B类IP地址列表
• 3. 最后一个IP地址例子

168.21.168.1是一个公开IP地址，使用者位于美国 格鲁吉亚 Athens，其用途是大学/学院/学校，类型是公司/T1。更多详情：168.21.168.1。

B类IP地址是指：在IP地址的四段号码（例如：字节1.字节2.字节3.字节4）中，前两段号码（字节1.字节2）为网络号码，剩下的后两段号码（字节3.字节4）为本地计算机的号码。

如果用二进制表示IP地址的话，B类IP地址就由2字节的网络地址和2字节主机地址组成，网络地址的最高位必须是'10'。

B类IP地址范围：128.0.0.0 ~ 191.255.255.255，可用IP地址范围：128.0.0.1 ~ 191.255.255.254。

B类IP地址中网络的标识长度为14位，主机标识的长度为16位，B类网络地址适用于中等规模的网络（2 ^ 14 = 16384个），每个网络所能容纳6万多台计算机（2 ^ 16 - 2 = 65534个）。

如果您需要了解B类IP段更详细的IP地址段信息，请点击B类IP地址列表中的标题链接。

• 168.21.168.0
• 168.21.168.1
• 168.21.168.2
• 168.21.168.3
• 168.21.168.4
• 168.21.168.5
• 168.21.168.6
• 168.21.168.7
• 168.21.168.8
• 168.21.168.9
• 168.21.168.10
• 168.21.168.11
• 168.21.168.12
• 168.21.168.13
• 168.21.168.14
• 168.21.168.15
• 168.21.168.16
• 168.21.168.17
• 168.21.168.18
• 168.21.168.19
• 168.21.168.20
• 168.21.168.21
• 168.21.168.22
• 168.21.168.23
• 168.21.168.24
• 168.21.168.25
• 168.21.168.26
• 168.21.168.27
• 168.21.168.28
• 168.21.168.29
• 168.21.168.30
• 168.21.168.31
• 168.21.168.32
• 168.21.168.33
• 168.21.168.34
• 168.21.168.35
• 168.21.168.36
• 168.21.168.37
• 168.21.168.38
• 168.21.168.39
• 168.21.168.40
• 168.21.168.41
• 168.21.168.42
• 168.21.168.43
• 168.21.168.44
• 168.21.168.45
• 168.21.168.46
• 168.21.168.47
• 168.21.168.48
• 168.21.168.49
• 168.21.168.50
• 168.21.168.51
• 168.21.168.52
• 168.21.168.53
• 168.21.168.54
• 168.21.168.55
• 168.21.168.56
• 168.21.168.57
• 168.21.168.58
• 168.21.168.59
• 168.21.168.60
• 168.21.168.61
• 168.21.168.62
• 168.21.168.63
• 168.21.168.64
• 168.21.168.65
• 168.21.168.66
• 168.21.168.67
• 168.21.168.68
• 168.21.168.69
• 168.21.168.70
• 168.21.168.71
• 168.21.168.72
• 168.21.168.73
• 168.21.168.74
• 168.21.168.75
• 168.21.168.76
• 168.21.168.77
• 168.21.168.78
• 168.21.168.79
• 168.21.168.80
• 168.21.168.81
• 168.21.168.82
• 168.21.168.83
• 168.21.168.84
• 168.21.168.85
• 168.21.168.86
• 168.21.168.87
• 168.21.168.88
• 168.21.168.89
• 168.21.168.90
• 168.21.168.91
• 168.21.168.92
• 168.21.168.93
• 168.21.168.94
• 168.21.168.95
• 168.21.168.96
• 168.21.168.97
• 168.21.168.98
• 168.21.168.99
• 168.21.168.100
• 168.21.168.101
• 168.21.168.102
• 168.21.168.103
• 168.21.168.104
• 168.21.168.105
• 168.21.168.106
• 168.21.168.107
• 168.21.168.108
• 168.21.168.109
• 168.21.168.110
• 168.21.168.111
• 168.21.168.112
• 168.21.168.113
• 168.21.168.114
• 168.21.168.115
• 168.21.168.116
• 168.21.168.117
• 168.21.168.118
• 168.21.168.119
• 168.21.168.120
• 168.21.168.121
• 168.21.168.122
• 168.21.168.123
• 168.21.168.124
• 168.21.168.125
• 168.21.168.126
• 168.21.168.127
• 168.21.168.128
• 168.21.168.129
• 168.21.168.130
• 168.21.168.131
• 168.21.168.132
• 168.21.168.133
• 168.21.168.134
• 168.21.168.135
• 168.21.168.136
• 168.21.168.137
• 168.21.168.138
• 168.21.168.139
• 168.21.168.140
• 168.21.168.141
• 168.21.168.142
• 168.21.168.143
• 168.21.168.144
• 168.21.168.145
• 168.21.168.146
• 168.21.168.147
• 168.21.168.148
• 168.21.168.149
• 168.21.168.150
• 168.21.168.151
• 168.21.168.152
• 168.21.168.153
• 168.21.168.154
• 168.21.168.155
• 168.21.168.156
• 168.21.168.157
• 168.21.168.158
• 168.21.168.159
• 168.21.168.160
• 168.21.168.161
• 168.21.168.162
• 168.21.168.163
• 168.21.168.164
• 168.21.168.165
• 168.21.168.166
• 168.21.168.167
• 168.21.168.168
• 168.21.168.169
• 168.21.168.170
• 168.21.168.171
• 168.21.168.172
• 168.21.168.173
• 168.21.168.174
• 168.21.168.175
• 168.21.168.176
• 168.21.168.177
• 168.21.168.178
• 168.21.168.179
• 168.21.168.180
• 168.21.168.181
• 168.21.168.182
• 168.21.168.183
• 168.21.168.184
• 168.21.168.185
• 168.21.168.186
• 168.21.168.187
• 168.21.168.188
• 168.21.168.189
• 168.21.168.190
• 168.21.168.191
• 168.21.168.192
• 168.21.168.193
• 168.21.168.194
• 168.21.168.195
• 168.21.168.196
• 168.21.168.197
• 168.21.168.198
• 168.21.168.199
• 168.21.168.200
• 168.21.168.201
• 168.21.168.202
• 168.21.168.203
• 168.21.168.204
• 168.21.168.205
• 168.21.168.206
• 168.21.168.207
• 168.21.168.208
• 168.21.168.209
• 168.21.168.210
• 168.21.168.211
• 168.21.168.212
• 168.21.168.213
• 168.21.168.214
• 168.21.168.215
• 168.21.168.216
• 168.21.168.217
• 168.21.168.218
• 168.21.168.219
• 168.21.168.220
• 168.21.168.221
• 168.21.168.222
• 168.21.168.223
• 168.21.168.224
• 168.21.168.225
• 168.21.168.226
• 168.21.168.227
• 168.21.168.228
• 168.21.168.229
• 168.21.168.230
• 168.21.168.231
• 168.21.168.232
• 168.21.168.233
• 168.21.168.234
• 168.21.168.235
• 168.21.168.236
• 168.21.168.237
• 168.21.168.238
• 168.21.168.239
• 168.21.168.240
• 168.21.168.241
• 168.21.168.242
• 168.21.168.243
• 168.21.168.244
• 168.21.168.245
• 168.21.168.246
• 168.21.168.247
• 168.21.168.248
• 168.21.168.249
• 168.21.168.250
• 168.21.168.251
• 168.21.168.252
• 168.21.168.253
• 168.21.168.254
• 168.21.168.255

168.21.168.255是一个公开IP地址，使用者位于美国 格鲁吉亚 Athens，其用途是大学/学院/学校，类型是公司/T1。更多详情：168.21.168.255。