253.231.21开头的IP是哪里的IP,IP地址列表: 253.231.21.* (253.231.21.0 - 253.231.21.254)

这是第一个字节为253，第二个字节为231，第三个字节为21，第四个字节在0 - 255之间的IP地址列表，表示为253.231.21.* (253.231.21.0 - 253.231.21.255)。

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253.231.21.1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. E类IP地址列表
• 3. 最后一个IP地址例子

253.231.21.1是一个保留的IP地址。保留的IP地址段不会在互联网上使用，因此与广域网相连的路由器在处理保留IP地址时，只是将该数据包丢弃处理，而不会路由到广域网上去。从而将保留IP地址产生的数据隔离在局域网内部。更多详情：253.231.21.1。

E类地址的前4位恒为1111，预置前4位为1意味着E类地址开始于128 + 64 + 32 + 16 = 240。

E类IP地址范围：240.0.0.0 ~ 255.255.255.255。

E类IPv4地址不区分网络地址与主机地址。

E类IP地址保留为以后使用，通常用于研究之用。因此Internet上没有可用的E类地址。

如果您需要了解E类IP地址段详情，可以点击E类IP地址列表中的标题链接。

• 253.231.21.0
• 253.231.21.1
• 253.231.21.2
• 253.231.21.3
• 253.231.21.4
• 253.231.21.5
• 253.231.21.6
• 253.231.21.7
• 253.231.21.8
• 253.231.21.9
• 253.231.21.10
• 253.231.21.11
• 253.231.21.12
• 253.231.21.13
• 253.231.21.14
• 253.231.21.15
• 253.231.21.16
• 253.231.21.17
• 253.231.21.18
• 253.231.21.19
• 253.231.21.20
• 253.231.21.21
• 253.231.21.22
• 253.231.21.23
• 253.231.21.24
• 253.231.21.25
• 253.231.21.26
• 253.231.21.27
• 253.231.21.28
• 253.231.21.29
• 253.231.21.30
• 253.231.21.31
• 253.231.21.32
• 253.231.21.33
• 253.231.21.34
• 253.231.21.35
• 253.231.21.36
• 253.231.21.37
• 253.231.21.38
• 253.231.21.39
• 253.231.21.40
• 253.231.21.41
• 253.231.21.42
• 253.231.21.43
• 253.231.21.44
• 253.231.21.45
• 253.231.21.46
• 253.231.21.47
• 253.231.21.48
• 253.231.21.49
• 253.231.21.50
• 253.231.21.51
• 253.231.21.52
• 253.231.21.53
• 253.231.21.54
• 253.231.21.55
• 253.231.21.56
• 253.231.21.57
• 253.231.21.58
• 253.231.21.59
• 253.231.21.60
• 253.231.21.61
• 253.231.21.62
• 253.231.21.63
• 253.231.21.64
• 253.231.21.65
• 253.231.21.66
• 253.231.21.67
• 253.231.21.68
• 253.231.21.69
• 253.231.21.70
• 253.231.21.71
• 253.231.21.72
• 253.231.21.73
• 253.231.21.74
• 253.231.21.75
• 253.231.21.76
• 253.231.21.77
• 253.231.21.78
• 253.231.21.79
• 253.231.21.80
• 253.231.21.81
• 253.231.21.82
• 253.231.21.83
• 253.231.21.84
• 253.231.21.85
• 253.231.21.86
• 253.231.21.87
• 253.231.21.88
• 253.231.21.89
• 253.231.21.90
• 253.231.21.91
• 253.231.21.92
• 253.231.21.93
• 253.231.21.94
• 253.231.21.95
• 253.231.21.96
• 253.231.21.97
• 253.231.21.98
• 253.231.21.99
• 253.231.21.100
• 253.231.21.101
• 253.231.21.102
• 253.231.21.103
• 253.231.21.104
• 253.231.21.105
• 253.231.21.106
• 253.231.21.107
• 253.231.21.108
• 253.231.21.109
• 253.231.21.110
• 253.231.21.111
• 253.231.21.112
• 253.231.21.113
• 253.231.21.114
• 253.231.21.115
• 253.231.21.116
• 253.231.21.117
• 253.231.21.118
• 253.231.21.119
• 253.231.21.120
• 253.231.21.121
• 253.231.21.122
• 253.231.21.123
• 253.231.21.124
• 253.231.21.125
• 253.231.21.126
• 253.231.21.127
• 253.231.21.128
• 253.231.21.129
• 253.231.21.130
• 253.231.21.131
• 253.231.21.132
• 253.231.21.133
• 253.231.21.134
• 253.231.21.135
• 253.231.21.136
• 253.231.21.137
• 253.231.21.138
• 253.231.21.139
• 253.231.21.140
• 253.231.21.141
• 253.231.21.142
• 253.231.21.143
• 253.231.21.144
• 253.231.21.145
• 253.231.21.146
• 253.231.21.147
• 253.231.21.148
• 253.231.21.149
• 253.231.21.150
• 253.231.21.151
• 253.231.21.152
• 253.231.21.153
• 253.231.21.154
• 253.231.21.155
• 253.231.21.156
• 253.231.21.157
• 253.231.21.158
• 253.231.21.159
• 253.231.21.160
• 253.231.21.161
• 253.231.21.162
• 253.231.21.163
• 253.231.21.164
• 253.231.21.165
• 253.231.21.166
• 253.231.21.167
• 253.231.21.168
• 253.231.21.169
• 253.231.21.170
• 253.231.21.171
• 253.231.21.172
• 253.231.21.173
• 253.231.21.174
• 253.231.21.175
• 253.231.21.176
• 253.231.21.177
• 253.231.21.178
• 253.231.21.179
• 253.231.21.180
• 253.231.21.181
• 253.231.21.182
• 253.231.21.183
• 253.231.21.184
• 253.231.21.185
• 253.231.21.186
• 253.231.21.187
• 253.231.21.188
• 253.231.21.189
• 253.231.21.190
• 253.231.21.191
• 253.231.21.192
• 253.231.21.193
• 253.231.21.194
• 253.231.21.195
• 253.231.21.196
• 253.231.21.197
• 253.231.21.198
• 253.231.21.199
• 253.231.21.200
• 253.231.21.201
• 253.231.21.202
• 253.231.21.203
• 253.231.21.204
• 253.231.21.205
• 253.231.21.206
• 253.231.21.207
• 253.231.21.208
• 253.231.21.209
• 253.231.21.210
• 253.231.21.211
• 253.231.21.212
• 253.231.21.213
• 253.231.21.214
• 253.231.21.215
• 253.231.21.216
• 253.231.21.217
• 253.231.21.218
• 253.231.21.219
• 253.231.21.220
• 253.231.21.221
• 253.231.21.222
• 253.231.21.223
• 253.231.21.224
• 253.231.21.225
• 253.231.21.226
• 253.231.21.227
• 253.231.21.228
• 253.231.21.229
• 253.231.21.230
• 253.231.21.231
• 253.231.21.232
• 253.231.21.233
• 253.231.21.234
• 253.231.21.235
• 253.231.21.236
• 253.231.21.237
• 253.231.21.238
• 253.231.21.239
• 253.231.21.240
• 253.231.21.241
• 253.231.21.242
• 253.231.21.243
• 253.231.21.244
• 253.231.21.245
• 253.231.21.246
• 253.231.21.247
• 253.231.21.248
• 253.231.21.249
• 253.231.21.250
• 253.231.21.251
• 253.231.21.252
• 253.231.21.253
• 253.231.21.254
• 253.231.21.255

253.231.21.255是一个保留的IP地址。保留的IP地址段不会在互联网上使用，因此与广域网相连的路由器在处理保留IP地址时，只是将该数据包丢弃处理，而不会路由到广域网上去。从而将保留IP地址产生的数据隔离在局域网内部。更多详情：253.231.21.255。