140.251.45开头的IP是哪里的IP,IP地址列表: 140.251.45.* (140.251.45.0 - 140.251.45.254)

这是第一个字节为140，第二个字节为251，第三个字节为45，第四个字节在0 - 255之间的IP地址列表，表示为140.251.45.* (140.251.45.0 - 140.251.45.255)。

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140.251.45.1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

140.251.45.1是一个公开IP地址，使用者位于美国 纽约 New York，其用途是大学/学院/学校，类型是公司/T1。更多详情：140.251.45.1。

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。

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140.251.45.255是一个公开IP地址，使用者位于美国 纽约 New York，其用途是大学/学院/学校，类型是公司/T1。更多详情：140.251.45.255。