21.106.155开头的IP是哪里的IP,IP地址列表: 21.106.155.* (21.106.155.0 - 21.106.155.254)

这是第一个字节为21，第二个字节为106，第三个字节为155，第四个字节在0 - 255之间的IP地址列表，表示为21.106.155.* (21.106.155.0 - 21.106.155.255)。

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21.106.155.1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. A类IP地址列表
• 3. 最后一个IP地址例子

21.106.155.1是一个公开IP地址，使用者位于美国 俄亥俄州 Columbus，其用途是军事，类型是公司/T1。更多详情：21.106.155.1。

A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，第一段号码（字节1）为网络号码，剩下的后三段号码（字节2.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，A类IP地址就由1字节的网络地址和3字节主机地址组成，网络地址的最高位必须是'0'。

A类IP地址范围：1.0.0.0 ~ 127.255.255.255，可用IP地址范围：1.0.0.1 ~ 127.255.255.254。

A类IP地址中网络的标识长度为7位，主机标识的长度为24位，A类网络地址数量较少（2 ^ 7 - 2 = 126个），可以用于容纳1600多万计算机的大型网络（2 ^ 24 - 2 = 16777214个）。

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

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21.106.155.255是一个公开IP地址，使用者位于美国 俄亥俄州 Columbus，其用途是军事，类型是公司/T1。更多详情：21.106.155.255。