21.255开头的IP是哪里的IP,IP地址列表: 21.255.*.* (21.255.0.* - 21.255.255.*)
这是第一个字节为21,第二个字节为255,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21.255.*.* (21.255.0.0 - 21.255.255.255)。
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21.255.1.1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。
- 21.255.0.*(21.255.0.0 - 21.255.0.254)
- 21.255.1.*(21.255.1.0 - 21.255.1.254)
- 21.255.2.*(21.255.2.0 - 21.255.2.254)
- 21.255.3.*(21.255.3.0 - 21.255.3.254)
- 21.255.4.*(21.255.4.0 - 21.255.4.254)
- 21.255.5.*(21.255.5.0 - 21.255.5.254)
- 21.255.6.*(21.255.6.0 - 21.255.6.254)
- 21.255.7.*(21.255.7.0 - 21.255.7.254)
- 21.255.8.*(21.255.8.0 - 21.255.8.254)
- 21.255.9.*(21.255.9.0 - 21.255.9.254)
- 21.255.10.*(21.255.10.0 - 21.255.10.254)
- 21.255.11.*(21.255.11.0 - 21.255.11.254)
- 21.255.12.*(21.255.12.0 - 21.255.12.254)
- 21.255.13.*(21.255.13.0 - 21.255.13.254)
- 21.255.14.*(21.255.14.0 - 21.255.14.254)
- 21.255.15.*(21.255.15.0 - 21.255.15.254)
- 21.255.16.*(21.255.16.0 - 21.255.16.254)
- 21.255.17.*(21.255.17.0 - 21.255.17.254)
- 21.255.18.*(21.255.18.0 - 21.255.18.254)
- 21.255.19.*(21.255.19.0 - 21.255.19.254)
- 21.255.20.*(21.255.20.0 - 21.255.20.254)
- 21.255.21.*(21.255.21.0 - 21.255.21.254)
- 21.255.22.*(21.255.22.0 - 21.255.22.254)
- 21.255.23.*(21.255.23.0 - 21.255.23.254)
- 21.255.24.*(21.255.24.0 - 21.255.24.254)
- 21.255.25.*(21.255.25.0 - 21.255.25.254)
- 21.255.26.*(21.255.26.0 - 21.255.26.254)
- 21.255.27.*(21.255.27.0 - 21.255.27.254)
- 21.255.28.*(21.255.28.0 - 21.255.28.254)
- 21.255.29.*(21.255.29.0 - 21.255.29.254)
- 21.255.30.*(21.255.30.0 - 21.255.30.254)
- 21.255.31.*(21.255.31.0 - 21.255.31.254)
- 21.255.32.*(21.255.32.0 - 21.255.32.254)
- 21.255.33.*(21.255.33.0 - 21.255.33.254)
- 21.255.34.*(21.255.34.0 - 21.255.34.254)
- 21.255.35.*(21.255.35.0 - 21.255.35.254)
- 21.255.36.*(21.255.36.0 - 21.255.36.254)
- 21.255.37.*(21.255.37.0 - 21.255.37.254)
- 21.255.38.*(21.255.38.0 - 21.255.38.254)
- 21.255.39.*(21.255.39.0 - 21.255.39.254)
- 21.255.40.*(21.255.40.0 - 21.255.40.254)
- 21.255.41.*(21.255.41.0 - 21.255.41.254)
- 21.255.42.*(21.255.42.0 - 21.255.42.254)
- 21.255.43.*(21.255.43.0 - 21.255.43.254)
- 21.255.44.*(21.255.44.0 - 21.255.44.254)
- 21.255.45.*(21.255.45.0 - 21.255.45.254)
- 21.255.46.*(21.255.46.0 - 21.255.46.254)
- 21.255.47.*(21.255.47.0 - 21.255.47.254)
- 21.255.48.*(21.255.48.0 - 21.255.48.254)
- 21.255.49.*(21.255.49.0 - 21.255.49.254)
- 21.255.50.*(21.255.50.0 - 21.255.50.254)
- 21.255.51.*(21.255.51.0 - 21.255.51.254)
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- 21.255.53.*(21.255.53.0 - 21.255.53.254)
- 21.255.54.*(21.255.54.0 - 21.255.54.254)
- 21.255.55.*(21.255.55.0 - 21.255.55.254)
- 21.255.56.*(21.255.56.0 - 21.255.56.254)
- 21.255.57.*(21.255.57.0 - 21.255.57.254)
- 21.255.58.*(21.255.58.0 - 21.255.58.254)
- 21.255.59.*(21.255.59.0 - 21.255.59.254)
- 21.255.60.*(21.255.60.0 - 21.255.60.254)
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- 21.255.63.*(21.255.63.0 - 21.255.63.254)
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- 21.255.98.*(21.255.98.0 - 21.255.98.254)
- 21.255.99.*(21.255.99.0 - 21.255.99.254)
- 21.255.100.*(21.255.100.0 - 21.255.100.254)
- 21.255.101.*(21.255.101.0 - 21.255.101.254)
- 21.255.102.*(21.255.102.0 - 21.255.102.254)
- 21.255.103.*(21.255.103.0 - 21.255.103.254)
- 21.255.104.*(21.255.104.0 - 21.255.104.254)
- 21.255.105.*(21.255.105.0 - 21.255.105.254)
- 21.255.106.*(21.255.106.0 - 21.255.106.254)
- 21.255.107.*(21.255.107.0 - 21.255.107.254)
- 21.255.108.*(21.255.108.0 - 21.255.108.254)
- 21.255.109.*(21.255.109.0 - 21.255.109.254)
- 21.255.110.*(21.255.110.0 - 21.255.110.254)
- 21.255.111.*(21.255.111.0 - 21.255.111.254)
- 21.255.112.*(21.255.112.0 - 21.255.112.254)
- 21.255.113.*(21.255.113.0 - 21.255.113.254)
- 21.255.114.*(21.255.114.0 - 21.255.114.254)
- 21.255.115.*(21.255.115.0 - 21.255.115.254)
- 21.255.116.*(21.255.116.0 - 21.255.116.254)
- 21.255.117.*(21.255.117.0 - 21.255.117.254)
- 21.255.118.*(21.255.118.0 - 21.255.118.254)
- 21.255.119.*(21.255.119.0 - 21.255.119.254)
- 21.255.120.*(21.255.120.0 - 21.255.120.254)
- 21.255.121.*(21.255.121.0 - 21.255.121.254)
- 21.255.122.*(21.255.122.0 - 21.255.122.254)
- 21.255.123.*(21.255.123.0 - 21.255.123.254)
- 21.255.124.*(21.255.124.0 - 21.255.124.254)
- 21.255.125.*(21.255.125.0 - 21.255.125.254)
- 21.255.126.*(21.255.126.0 - 21.255.126.254)
- 21.255.127.*(21.255.127.0 - 21.255.127.254)
- 21.255.128.*(21.255.128.0 - 21.255.128.254)
- 21.255.129.*(21.255.129.0 - 21.255.129.254)
- 21.255.130.*(21.255.130.0 - 21.255.130.254)
- 21.255.131.*(21.255.131.0 - 21.255.131.254)
- 21.255.132.*(21.255.132.0 - 21.255.132.254)
- 21.255.133.*(21.255.133.0 - 21.255.133.254)
- 21.255.134.*(21.255.134.0 - 21.255.134.254)
- 21.255.135.*(21.255.135.0 - 21.255.135.254)
- 21.255.136.*(21.255.136.0 - 21.255.136.254)
- 21.255.137.*(21.255.137.0 - 21.255.137.254)
- 21.255.138.*(21.255.138.0 - 21.255.138.254)
- 21.255.139.*(21.255.139.0 - 21.255.139.254)
- 21.255.140.*(21.255.140.0 - 21.255.140.254)
- 21.255.141.*(21.255.141.0 - 21.255.141.254)
- 21.255.142.*(21.255.142.0 - 21.255.142.254)
- 21.255.143.*(21.255.143.0 - 21.255.143.254)
- 21.255.144.*(21.255.144.0 - 21.255.144.254)
- 21.255.145.*(21.255.145.0 - 21.255.145.254)
- 21.255.146.*(21.255.146.0 - 21.255.146.254)
- 21.255.147.*(21.255.147.0 - 21.255.147.254)
- 21.255.148.*(21.255.148.0 - 21.255.148.254)
- 21.255.149.*(21.255.149.0 - 21.255.149.254)
- 21.255.150.*(21.255.150.0 - 21.255.150.254)
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- 21.255.155.*(21.255.155.0 - 21.255.155.254)
- 21.255.156.*(21.255.156.0 - 21.255.156.254)
- 21.255.157.*(21.255.157.0 - 21.255.157.254)
- 21.255.158.*(21.255.158.0 - 21.255.158.254)
- 21.255.159.*(21.255.159.0 - 21.255.159.254)
- 21.255.160.*(21.255.160.0 - 21.255.160.254)
- 21.255.161.*(21.255.161.0 - 21.255.161.254)
- 21.255.162.*(21.255.162.0 - 21.255.162.254)
- 21.255.163.*(21.255.163.0 - 21.255.163.254)
- 21.255.164.*(21.255.164.0 - 21.255.164.254)
- 21.255.165.*(21.255.165.0 - 21.255.165.254)
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- 21.255.169.*(21.255.169.0 - 21.255.169.254)
- 21.255.170.*(21.255.170.0 - 21.255.170.254)
- 21.255.171.*(21.255.171.0 - 21.255.171.254)
- 21.255.172.*(21.255.172.0 - 21.255.172.254)
- 21.255.173.*(21.255.173.0 - 21.255.173.254)
- 21.255.174.*(21.255.174.0 - 21.255.174.254)
- 21.255.175.*(21.255.175.0 - 21.255.175.254)
- 21.255.176.*(21.255.176.0 - 21.255.176.254)
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