2.21开头的IP是哪里的IP,IP地址列表: 2.21.*.* (2.21.0.* - 2.21.255.*)
这是第一个字节为2,第二个字节为21,第三个字节在0 - 255之间,第四字节可变动(下面为星号)的IP地址列表,表示为2.21.*.* (2.21.0.0 - 2.21.255.255)。
这个IP地址列表中包含256 * 256 = 65,536个IP地址,我们以其中一个IP地址2.21.1.1为例,来描述这个IP的属性:
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。
关于IP地址2进制、10进制、16进制的说明 关于网络号、主机号及A/B/C/D/E类IP的说明内容:
2. A类IP地址列表
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。
- 2.21.0.*(2.21.0.0 - 2.21.0.254)
- 2.21.1.*(2.21.1.0 - 2.21.1.254)
- 2.21.2.*(2.21.2.0 - 2.21.2.254)
- 2.21.3.*(2.21.3.0 - 2.21.3.254)
- 2.21.4.*(2.21.4.0 - 2.21.4.254)
- 2.21.5.*(2.21.5.0 - 2.21.5.254)
- 2.21.6.*(2.21.6.0 - 2.21.6.254)
- 2.21.7.*(2.21.7.0 - 2.21.7.254)
- 2.21.8.*(2.21.8.0 - 2.21.8.254)
- 2.21.9.*(2.21.9.0 - 2.21.9.254)
- 2.21.10.*(2.21.10.0 - 2.21.10.254)
- 2.21.11.*(2.21.11.0 - 2.21.11.254)
- 2.21.12.*(2.21.12.0 - 2.21.12.254)
- 2.21.13.*(2.21.13.0 - 2.21.13.254)
- 2.21.14.*(2.21.14.0 - 2.21.14.254)
- 2.21.15.*(2.21.15.0 - 2.21.15.254)
- 2.21.16.*(2.21.16.0 - 2.21.16.254)
- 2.21.17.*(2.21.17.0 - 2.21.17.254)
- 2.21.18.*(2.21.18.0 - 2.21.18.254)
- 2.21.19.*(2.21.19.0 - 2.21.19.254)
- 2.21.20.*(2.21.20.0 - 2.21.20.254)
- 2.21.21.*(2.21.21.0 - 2.21.21.254)
- 2.21.22.*(2.21.22.0 - 2.21.22.254)
- 2.21.23.*(2.21.23.0 - 2.21.23.254)
- 2.21.24.*(2.21.24.0 - 2.21.24.254)
- 2.21.25.*(2.21.25.0 - 2.21.25.254)
- 2.21.26.*(2.21.26.0 - 2.21.26.254)
- 2.21.27.*(2.21.27.0 - 2.21.27.254)
- 2.21.28.*(2.21.28.0 - 2.21.28.254)
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- 2.21.33.*(2.21.33.0 - 2.21.33.254)
- 2.21.34.*(2.21.34.0 - 2.21.34.254)
- 2.21.35.*(2.21.35.0 - 2.21.35.254)
- 2.21.36.*(2.21.36.0 - 2.21.36.254)
- 2.21.37.*(2.21.37.0 - 2.21.37.254)
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- 2.21.113.*(2.21.113.0 - 2.21.113.254)
- 2.21.114.*(2.21.114.0 - 2.21.114.254)
- 2.21.115.*(2.21.115.0 - 2.21.115.254)
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- 2.21.118.*(2.21.118.0 - 2.21.118.254)
- 2.21.119.*(2.21.119.0 - 2.21.119.254)
- 2.21.120.*(2.21.120.0 - 2.21.120.254)
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