您在這裡
IP 地址列表: 212.31.21.* (212.31.21.0 - 212.31.21.254)
這是第壹個字節為212,第二個字節為31,第三個字節為21,第四個字節在0 - 255之間的IP地址列表,表示為212.31.21.* (212.31.21.0 - 212.31.21.255)。
這個IP地址列表中包含256個IP地址,我們以其中壹個IP地址212.31.21.1為例,來描述這個IP的屬性:
但這只是其中1個IP地址的例子,並不代表這個列表中所有的IP地址都有同樣的屬性,如果需要了解其它IP和更詳細的IP地址段信息,請點擊下面列表中的標題鏈接。

內容:
1. 第一個 IP 地址示例

212.31.21.1是一個公開IP地址,使用者位於土耳其 伊斯坦布尔 伊斯坦布尔,其用途是數據中心/網絡託管/傳輸,類型是公司/T1。更多詳情:212.31.21.1。
🔝 回到頂部2. C類IP地址列表
C類IP地址是指:在IP地址的四段號碼(例如:字節1.字節2.字節3.字節4)中,前三段號碼(字節1.字節2.字節3)為網絡號碼,剩下的後壹段號碼(字節4)為本地計算機的號碼。 如果用二進制表示IP地址的話,C類IP地址就由3字節的網絡地址和1字節主機地址組成,網絡地址的最高位必須是'110'。 C類IP地址範圍:192.0.0.0 ~ 223.255.255.255,可用IP地址範圍:192.0.0.1 ~ 223.255.255.254。 C類IP地址中網絡的標識長度為21位,主機標識的長度為8位,C類網絡地址數量較多(2 ^ 21 = 2097152個),適用於小規模的局域網絡,每個網絡最多只能包含254臺計算機(2 ^ 8 - 2 = 254個)。 如果您需要了解C類IP地址段詳情,可以點擊C類IP地址列表中的標題鏈接。
- 212.31.21.0網絡ID號碼,不能分配使用
- 212.31.21.1常用於網關、路由器等網絡設備
- 212.31.21.2
- 212.31.21.3
- 212.31.21.4
- 212.31.21.5
- 212.31.21.6
- 212.31.21.7
- 212.31.21.8
- 212.31.21.9
- 212.31.21.10
- 212.31.21.11
- 212.31.21.12
- 212.31.21.13
- 212.31.21.14
- 212.31.21.15
- 212.31.21.16
- 212.31.21.17
- 212.31.21.18
- 212.31.21.19
- 212.31.21.20
- 212.31.21.21
- 212.31.21.22
- 212.31.21.23
- 212.31.21.24
- 212.31.21.25
- 212.31.21.26
- 212.31.21.27
- 212.31.21.28
- 212.31.21.29
- 212.31.21.30
- 212.31.21.31
- 212.31.21.32
- 212.31.21.33
- 212.31.21.34
- 212.31.21.35
- 212.31.21.36
- 212.31.21.37
- 212.31.21.38
- 212.31.21.39
- 212.31.21.40
- 212.31.21.41
- 212.31.21.42
- 212.31.21.43
- 212.31.21.44
- 212.31.21.45
- 212.31.21.46
- 212.31.21.47
- 212.31.21.48
- 212.31.21.49
- 212.31.21.50
- 212.31.21.51
- 212.31.21.52
- 212.31.21.53
- 212.31.21.54
- 212.31.21.55
- 212.31.21.56
- 212.31.21.57
- 212.31.21.58
- 212.31.21.59
- 212.31.21.60
- 212.31.21.61
- 212.31.21.62
- 212.31.21.63
- 212.31.21.64
- 212.31.21.65
- 212.31.21.66
- 212.31.21.67
- 212.31.21.68
- 212.31.21.69
- 212.31.21.70
- 212.31.21.71
- 212.31.21.72
- 212.31.21.73
- 212.31.21.74
- 212.31.21.75
- 212.31.21.76
- 212.31.21.77
- 212.31.21.78
- 212.31.21.79
- 212.31.21.80
- 212.31.21.81
- 212.31.21.82
- 212.31.21.83
- 212.31.21.84
- 212.31.21.85
- 212.31.21.86
- 212.31.21.87
- 212.31.21.88
- 212.31.21.89
- 212.31.21.90
- 212.31.21.91
- 212.31.21.92
- 212.31.21.93
- 212.31.21.94
- 212.31.21.95
- 212.31.21.96
- 212.31.21.97
- 212.31.21.98
- 212.31.21.99
- 212.31.21.100
- 212.31.21.101
- 212.31.21.102
- 212.31.21.103
- 212.31.21.104
- 212.31.21.105
- 212.31.21.106
- 212.31.21.107
- 212.31.21.108
- 212.31.21.109
- 212.31.21.110
- 212.31.21.111
- 212.31.21.112
- 212.31.21.113
- 212.31.21.114
- 212.31.21.115
- 212.31.21.116
- 212.31.21.117
- 212.31.21.118
- 212.31.21.119
- 212.31.21.120
- 212.31.21.121
- 212.31.21.122
- 212.31.21.123
- 212.31.21.124
- 212.31.21.125
- 212.31.21.126
- 212.31.21.127
- 212.31.21.128
- 212.31.21.129
- 212.31.21.130
- 212.31.21.131
- 212.31.21.132
- 212.31.21.133
- 212.31.21.134
- 212.31.21.135
- 212.31.21.136
- 212.31.21.137
- 212.31.21.138
- 212.31.21.139
- 212.31.21.140
- 212.31.21.141
- 212.31.21.142
- 212.31.21.143
- 212.31.21.144
- 212.31.21.145
- 212.31.21.146
- 212.31.21.147
- 212.31.21.148
- 212.31.21.149
- 212.31.21.150
- 212.31.21.151
- 212.31.21.152
- 212.31.21.153
- 212.31.21.154
- 212.31.21.155
- 212.31.21.156
- 212.31.21.157
- 212.31.21.158
- 212.31.21.159
- 212.31.21.160
- 212.31.21.161
- 212.31.21.162
- 212.31.21.163
- 212.31.21.164
- 212.31.21.165
- 212.31.21.166
- 212.31.21.167
- 212.31.21.168
- 212.31.21.169
- 212.31.21.170
- 212.31.21.171
- 212.31.21.172
- 212.31.21.173
- 212.31.21.174
- 212.31.21.175
- 212.31.21.176
- 212.31.21.177
- 212.31.21.178
- 212.31.21.179
- 212.31.21.180
- 212.31.21.181
- 212.31.21.182
- 212.31.21.183
- 212.31.21.184
- 212.31.21.185
- 212.31.21.186
- 212.31.21.187
- 212.31.21.188
- 212.31.21.189
- 212.31.21.190
- 212.31.21.191
- 212.31.21.192
- 212.31.21.193
- 212.31.21.194
- 212.31.21.195
- 212.31.21.196
- 212.31.21.197
- 212.31.21.198
- 212.31.21.199
- 212.31.21.200
- 212.31.21.201
- 212.31.21.202
- 212.31.21.203
- 212.31.21.204
- 212.31.21.205
- 212.31.21.206
- 212.31.21.207
- 212.31.21.208
- 212.31.21.209
- 212.31.21.210
- 212.31.21.211
- 212.31.21.212
- 212.31.21.213
- 212.31.21.214
- 212.31.21.215
- 212.31.21.216
- 212.31.21.217
- 212.31.21.218
- 212.31.21.219
- 212.31.21.220
- 212.31.21.221
- 212.31.21.222
- 212.31.21.223
- 212.31.21.224
- 212.31.21.225
- 212.31.21.226
- 212.31.21.227
- 212.31.21.228
- 212.31.21.229
- 212.31.21.230
- 212.31.21.231
- 212.31.21.232
- 212.31.21.233
- 212.31.21.234
- 212.31.21.235
- 212.31.21.236
- 212.31.21.237
- 212.31.21.238
- 212.31.21.239
- 212.31.21.240
- 212.31.21.241
- 212.31.21.242
- 212.31.21.243
- 212.31.21.244
- 212.31.21.245
- 212.31.21.246
- 212.31.21.247
- 212.31.21.248
- 212.31.21.249
- 212.31.21.250
- 212.31.21.251
- 212.31.21.252
- 212.31.21.253
- 212.31.21.254
- 212.31.21.255網絡廣播地址,不能分配使用
3. 最後一個 IP 地址示例

212.31.21.255是一個公開IP地址,使用者位於土耳其 伊斯坦布尔 伊斯坦布尔,其用途是數據中心/網絡託管/傳輸,類型是公司/T1。更多詳情:212.31.21.255。
🔝 回到頂部