IPIP 地址列表: 81.23.*.* (81.23.0.* - 81.23.255.*)
這是第壹個字節為81，第二個字節為23，第三個字節在0 - 255之間，第四字節可變動（下面為星號）的IP地址列表，表示為81.23.*.* (81.23.0.0 - 81.23.255.255)。
這個IP地址列表中包含256 * 256 = 65,536個IP地址，我們以其中壹個IP地址81.23.1.1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。
二進制、十進制和十六進制的 IP 地址說明
IP 地址類別 A/B/C/D/E 和網絡 ID、主機 ID 的說明
內容:
2. A類IP地址列表
A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，第壹段號碼（字節1）為網絡號碼，剩下的後三段號碼（字節2.字節3.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，A類IP地址就由1字節的網絡地址和3字節主機地址組成，網絡地址的最高位必須是'0'。
A類IP地址範圍：1.0.0.0 ~ 127.255.255.255，可用IP地址範圍：1.0.0.1 ~ 127.255.255.254。
A類IP地址中網絡的標識長度為7位，主機標識的長度為24位，A類網絡地址數量較少（2 ^ 7 - 2 = 126個），可以用於容納1600多萬計算機的大型網絡（2 ^ 24 - 2 = 16777214個）。
如果您需要了解A類IP段更詳細的IP地址信息，請點擊A類IP地址列表中的標題鏈接。
- 81.23.0.*(81.23.0.0 - 81.23.0.254)
- 81.23.1.*(81.23.1.0 - 81.23.1.254)
- 81.23.2.*(81.23.2.0 - 81.23.2.254)
- 81.23.3.*(81.23.3.0 - 81.23.3.254)
- 81.23.4.*(81.23.4.0 - 81.23.4.254)
- 81.23.5.*(81.23.5.0 - 81.23.5.254)
- 81.23.6.*(81.23.6.0 - 81.23.6.254)
- 81.23.7.*(81.23.7.0 - 81.23.7.254)
- 81.23.8.*(81.23.8.0 - 81.23.8.254)
- 81.23.9.*(81.23.9.0 - 81.23.9.254)
- 81.23.10.*(81.23.10.0 - 81.23.10.254)
- 81.23.11.*(81.23.11.0 - 81.23.11.254)
- 81.23.12.*(81.23.12.0 - 81.23.12.254)
- 81.23.13.*(81.23.13.0 - 81.23.13.254)
- 81.23.14.*(81.23.14.0 - 81.23.14.254)
- 81.23.15.*(81.23.15.0 - 81.23.15.254)
- 81.23.16.*(81.23.16.0 - 81.23.16.254)
- 81.23.17.*(81.23.17.0 - 81.23.17.254)
- 81.23.18.*(81.23.18.0 - 81.23.18.254)
- 81.23.19.*(81.23.19.0 - 81.23.19.254)
- 81.23.20.*(81.23.20.0 - 81.23.20.254)
- 81.23.21.*(81.23.21.0 - 81.23.21.254)
- 81.23.22.*(81.23.22.0 - 81.23.22.254)
- 81.23.23.*(81.23.23.0 - 81.23.23.254)
- 81.23.24.*(81.23.24.0 - 81.23.24.254)
- 81.23.25.*(81.23.25.0 - 81.23.25.254)
- 81.23.26.*(81.23.26.0 - 81.23.26.254)
- 81.23.27.*(81.23.27.0 - 81.23.27.254)
- 81.23.28.*(81.23.28.0 - 81.23.28.254)
- 81.23.29.*(81.23.29.0 - 81.23.29.254)
- 81.23.30.*(81.23.30.0 - 81.23.30.254)
- 81.23.31.*(81.23.31.0 - 81.23.31.254)
- 81.23.32.*(81.23.32.0 - 81.23.32.254)
- 81.23.33.*(81.23.33.0 - 81.23.33.254)
- 81.23.34.*(81.23.34.0 - 81.23.34.254)
- 81.23.35.*(81.23.35.0 - 81.23.35.254)
- 81.23.36.*(81.23.36.0 - 81.23.36.254)
- 81.23.37.*(81.23.37.0 - 81.23.37.254)
- 81.23.38.*(81.23.38.0 - 81.23.38.254)
- 81.23.39.*(81.23.39.0 - 81.23.39.254)
- 81.23.40.*(81.23.40.0 - 81.23.40.254)
- 81.23.41.*(81.23.41.0 - 81.23.41.254)
- 81.23.42.*(81.23.42.0 - 81.23.42.254)
- 81.23.43.*(81.23.43.0 - 81.23.43.254)
- 81.23.44.*(81.23.44.0 - 81.23.44.254)
- 81.23.45.*(81.23.45.0 - 81.23.45.254)
- 81.23.46.*(81.23.46.0 - 81.23.46.254)
- 81.23.47.*(81.23.47.0 - 81.23.47.254)
- 81.23.48.*(81.23.48.0 - 81.23.48.254)
- 81.23.49.*(81.23.49.0 - 81.23.49.254)
- 81.23.50.*(81.23.50.0 - 81.23.50.254)
- 81.23.51.*(81.23.51.0 - 81.23.51.254)
- 81.23.52.*(81.23.52.0 - 81.23.52.254)
- 81.23.53.*(81.23.53.0 - 81.23.53.254)
- 81.23.54.*(81.23.54.0 - 81.23.54.254)
- 81.23.55.*(81.23.55.0 - 81.23.55.254)
- 81.23.56.*(81.23.56.0 - 81.23.56.254)
- 81.23.57.*(81.23.57.0 - 81.23.57.254)
- 81.23.58.*(81.23.58.0 - 81.23.58.254)
- 81.23.59.*(81.23.59.0 - 81.23.59.254)
- 81.23.60.*(81.23.60.0 - 81.23.60.254)
- 81.23.61.*(81.23.61.0 - 81.23.61.254)
- 81.23.62.*(81.23.62.0 - 81.23.62.254)
- 81.23.63.*(81.23.63.0 - 81.23.63.254)
- 81.23.64.*(81.23.64.0 - 81.23.64.254)
- 81.23.65.*(81.23.65.0 - 81.23.65.254)
- 81.23.66.*(81.23.66.0 - 81.23.66.254)
- 81.23.67.*(81.23.67.0 - 81.23.67.254)
- 81.23.68.*(81.23.68.0 - 81.23.68.254)
- 81.23.69.*(81.23.69.0 - 81.23.69.254)
- 81.23.70.*(81.23.70.0 - 81.23.70.254)
- 81.23.71.*(81.23.71.0 - 81.23.71.254)
- 81.23.72.*(81.23.72.0 - 81.23.72.254)
- 81.23.73.*(81.23.73.0 - 81.23.73.254)
- 81.23.74.*(81.23.74.0 - 81.23.74.254)
- 81.23.75.*(81.23.75.0 - 81.23.75.254)
- 81.23.76.*(81.23.76.0 - 81.23.76.254)
- 81.23.77.*(81.23.77.0 - 81.23.77.254)
- 81.23.78.*(81.23.78.0 - 81.23.78.254)
- 81.23.79.*(81.23.79.0 - 81.23.79.254)
- 81.23.80.*(81.23.80.0 - 81.23.80.254)
- 81.23.81.*(81.23.81.0 - 81.23.81.254)
- 81.23.82.*(81.23.82.0 - 81.23.82.254)
- 81.23.83.*(81.23.83.0 - 81.23.83.254)
- 81.23.84.*(81.23.84.0 - 81.23.84.254)
- 81.23.85.*(81.23.85.0 - 81.23.85.254)
- 81.23.86.*(81.23.86.0 - 81.23.86.254)
- 81.23.87.*(81.23.87.0 - 81.23.87.254)
- 81.23.88.*(81.23.88.0 - 81.23.88.254)
- 81.23.89.*(81.23.89.0 - 81.23.89.254)
- 81.23.90.*(81.23.90.0 - 81.23.90.254)
- 81.23.91.*(81.23.91.0 - 81.23.91.254)
- 81.23.92.*(81.23.92.0 - 81.23.92.254)
- 81.23.93.*(81.23.93.0 - 81.23.93.254)
- 81.23.94.*(81.23.94.0 - 81.23.94.254)
- 81.23.95.*(81.23.95.0 - 81.23.95.254)
- 81.23.96.*(81.23.96.0 - 81.23.96.254)
- 81.23.97.*(81.23.97.0 - 81.23.97.254)
- 81.23.98.*(81.23.98.0 - 81.23.98.254)
- 81.23.99.*(81.23.99.0 - 81.23.99.254)
- 81.23.100.*(81.23.100.0 - 81.23.100.254)
- 81.23.101.*(81.23.101.0 - 81.23.101.254)
- 81.23.102.*(81.23.102.0 - 81.23.102.254)
- 81.23.103.*(81.23.103.0 - 81.23.103.254)
- 81.23.104.*(81.23.104.0 - 81.23.104.254)
- 81.23.105.*(81.23.105.0 - 81.23.105.254)
- 81.23.106.*(81.23.106.0 - 81.23.106.254)
- 81.23.107.*(81.23.107.0 - 81.23.107.254)
- 81.23.108.*(81.23.108.0 - 81.23.108.254)
- 81.23.109.*(81.23.109.0 - 81.23.109.254)
- 81.23.110.*(81.23.110.0 - 81.23.110.254)
- 81.23.111.*(81.23.111.0 - 81.23.111.254)
- 81.23.112.*(81.23.112.0 - 81.23.112.254)
- 81.23.113.*(81.23.113.0 - 81.23.113.254)
- 81.23.114.*(81.23.114.0 - 81.23.114.254)
- 81.23.115.*(81.23.115.0 - 81.23.115.254)
- 81.23.116.*(81.23.116.0 - 81.23.116.254)
- 81.23.117.*(81.23.117.0 - 81.23.117.254)
- 81.23.118.*(81.23.118.0 - 81.23.118.254)
- 81.23.119.*(81.23.119.0 - 81.23.119.254)
- 81.23.120.*(81.23.120.0 - 81.23.120.254)
- 81.23.121.*(81.23.121.0 - 81.23.121.254)
- 81.23.122.*(81.23.122.0 - 81.23.122.254)
- 81.23.123.*(81.23.123.0 - 81.23.123.254)
- 81.23.124.*(81.23.124.0 - 81.23.124.254)
- 81.23.125.*(81.23.125.0 - 81.23.125.254)
- 81.23.126.*(81.23.126.0 - 81.23.126.254)
- 81.23.127.*(81.23.127.0 - 81.23.127.254)
- 81.23.128.*(81.23.128.0 - 81.23.128.254)
- 81.23.129.*(81.23.129.0 - 81.23.129.254)
- 81.23.130.*(81.23.130.0 - 81.23.130.254)
- 81.23.131.*(81.23.131.0 - 81.23.131.254)
- 81.23.132.*(81.23.132.0 - 81.23.132.254)
- 81.23.133.*(81.23.133.0 - 81.23.133.254)
- 81.23.134.*(81.23.134.0 - 81.23.134.254)
- 81.23.135.*(81.23.135.0 - 81.23.135.254)
- 81.23.136.*(81.23.136.0 - 81.23.136.254)
- 81.23.137.*(81.23.137.0 - 81.23.137.254)
- 81.23.138.*(81.23.138.0 - 81.23.138.254)
- 81.23.139.*(81.23.139.0 - 81.23.139.254)
- 81.23.140.*(81.23.140.0 - 81.23.140.254)
- 81.23.141.*(81.23.141.0 - 81.23.141.254)
- 81.23.142.*(81.23.142.0 - 81.23.142.254)
- 81.23.143.*(81.23.143.0 - 81.23.143.254)
- 81.23.144.*(81.23.144.0 - 81.23.144.254)
- 81.23.145.*(81.23.145.0 - 81.23.145.254)
- 81.23.146.*(81.23.146.0 - 81.23.146.254)
- 81.23.147.*(81.23.147.0 - 81.23.147.254)
- 81.23.148.*(81.23.148.0 - 81.23.148.254)
- 81.23.149.*(81.23.149.0 - 81.23.149.254)
- 81.23.150.*(81.23.150.0 - 81.23.150.254)
- 81.23.151.*(81.23.151.0 - 81.23.151.254)
- 81.23.152.*(81.23.152.0 - 81.23.152.254)
- 81.23.153.*(81.23.153.0 - 81.23.153.254)
- 81.23.154.*(81.23.154.0 - 81.23.154.254)
- 81.23.155.*(81.23.155.0 - 81.23.155.254)
- 81.23.156.*(81.23.156.0 - 81.23.156.254)
- 81.23.157.*(81.23.157.0 - 81.23.157.254)
- 81.23.158.*(81.23.158.0 - 81.23.158.254)
- 81.23.159.*(81.23.159.0 - 81.23.159.254)
- 81.23.160.*(81.23.160.0 - 81.23.160.254)
- 81.23.161.*(81.23.161.0 - 81.23.161.254)
- 81.23.162.*(81.23.162.0 - 81.23.162.254)
- 81.23.163.*(81.23.163.0 - 81.23.163.254)
- 81.23.164.*(81.23.164.0 - 81.23.164.254)
- 81.23.165.*(81.23.165.0 - 81.23.165.254)
- 81.23.166.*(81.23.166.0 - 81.23.166.254)
- 81.23.167.*(81.23.167.0 - 81.23.167.254)
- 81.23.168.*(81.23.168.0 - 81.23.168.254)
- 81.23.169.*(81.23.169.0 - 81.23.169.254)
- 81.23.170.*(81.23.170.0 - 81.23.170.254)
- 81.23.171.*(81.23.171.0 - 81.23.171.254)
- 81.23.172.*(81.23.172.0 - 81.23.172.254)
- 81.23.173.*(81.23.173.0 - 81.23.173.254)
- 81.23.174.*(81.23.174.0 - 81.23.174.254)
- 81.23.175.*(81.23.175.0 - 81.23.175.254)
- 81.23.176.*(81.23.176.0 - 81.23.176.254)
- 81.23.177.*(81.23.177.0 - 81.23.177.254)
- 81.23.178.*(81.23.178.0 - 81.23.178.254)
- 81.23.179.*(81.23.179.0 - 81.23.179.254)
- 81.23.180.*(81.23.180.0 - 81.23.180.254)
- 81.23.181.*(81.23.181.0 - 81.23.181.254)
- 81.23.182.*(81.23.182.0 - 81.23.182.254)
- 81.23.183.*(81.23.183.0 - 81.23.183.254)
- 81.23.184.*(81.23.184.0 - 81.23.184.254)
- 81.23.185.*(81.23.185.0 - 81.23.185.254)
- 81.23.186.*(81.23.186.0 - 81.23.186.254)
- 81.23.187.*(81.23.187.0 - 81.23.187.254)
- 81.23.188.*(81.23.188.0 - 81.23.188.254)
- 81.23.189.*(81.23.189.0 - 81.23.189.254)
- 81.23.190.*(81.23.190.0 - 81.23.190.254)
- 81.23.191.*(81.23.191.0 - 81.23.191.254)
- 81.23.192.*(81.23.192.0 - 81.23.192.254)
- 81.23.193.*(81.23.193.0 - 81.23.193.254)
- 81.23.194.*(81.23.194.0 - 81.23.194.254)
- 81.23.195.*(81.23.195.0 - 81.23.195.254)
- 81.23.196.*(81.23.196.0 - 81.23.196.254)
- 81.23.197.*(81.23.197.0 - 81.23.197.254)
- 81.23.198.*(81.23.198.0 - 81.23.198.254)
- 81.23.199.*(81.23.199.0 - 81.23.199.254)
- 81.23.200.*(81.23.200.0 - 81.23.200.254)
- 81.23.201.*(81.23.201.0 - 81.23.201.254)
- 81.23.202.*(81.23.202.0 - 81.23.202.254)
- 81.23.203.*(81.23.203.0 - 81.23.203.254)
- 81.23.204.*(81.23.204.0 - 81.23.204.254)
- 81.23.205.*(81.23.205.0 - 81.23.205.254)
- 81.23.206.*(81.23.206.0 - 81.23.206.254)
- 81.23.207.*(81.23.207.0 - 81.23.207.254)
- 81.23.208.*(81.23.208.0 - 81.23.208.254)
- 81.23.209.*(81.23.209.0 - 81.23.209.254)
- 81.23.210.*(81.23.210.0 - 81.23.210.254)
- 81.23.211.*(81.23.211.0 - 81.23.211.254)
- 81.23.212.*(81.23.212.0 - 81.23.212.254)
- 81.23.213.*(81.23.213.0 - 81.23.213.254)
- 81.23.214.*(81.23.214.0 - 81.23.214.254)
- 81.23.215.*(81.23.215.0 - 81.23.215.254)
- 81.23.216.*(81.23.216.0 - 81.23.216.254)
- 81.23.217.*(81.23.217.0 - 81.23.217.254)
- 81.23.218.*(81.23.218.0 - 81.23.218.254)
- 81.23.219.*(81.23.219.0 - 81.23.219.254)
- 81.23.220.*(81.23.220.0 - 81.23.220.254)
- 81.23.221.*(81.23.221.0 - 81.23.221.254)
- 81.23.222.*(81.23.222.0 - 81.23.222.254)
- 81.23.223.*(81.23.223.0 - 81.23.223.254)
- 81.23.224.*(81.23.224.0 - 81.23.224.254)
- 81.23.225.*(81.23.225.0 - 81.23.225.254)
- 81.23.226.*(81.23.226.0 - 81.23.226.254)
- 81.23.227.*(81.23.227.0 - 81.23.227.254)
- 81.23.228.*(81.23.228.0 - 81.23.228.254)
- 81.23.229.*(81.23.229.0 - 81.23.229.254)
- 81.23.230.*(81.23.230.0 - 81.23.230.254)
- 81.23.231.*(81.23.231.0 - 81.23.231.254)
- 81.23.232.*(81.23.232.0 - 81.23.232.254)
- 81.23.233.*(81.23.233.0 - 81.23.233.254)
- 81.23.234.*(81.23.234.0 - 81.23.234.254)
- 81.23.235.*(81.23.235.0 - 81.23.235.254)
- 81.23.236.*(81.23.236.0 - 81.23.236.254)
- 81.23.237.*(81.23.237.0 - 81.23.237.254)
- 81.23.238.*(81.23.238.0 - 81.23.238.254)
- 81.23.239.*(81.23.239.0 - 81.23.239.254)
- 81.23.240.*(81.23.240.0 - 81.23.240.254)
- 81.23.241.*(81.23.241.0 - 81.23.241.254)
- 81.23.242.*(81.23.242.0 - 81.23.242.254)
- 81.23.243.*(81.23.243.0 - 81.23.243.254)
- 81.23.244.*(81.23.244.0 - 81.23.244.254)
- 81.23.245.*(81.23.245.0 - 81.23.245.254)
- 81.23.246.*(81.23.246.0 - 81.23.246.254)
- 81.23.247.*(81.23.247.0 - 81.23.247.254)
- 81.23.248.*(81.23.248.0 - 81.23.248.254)
- 81.23.249.*(81.23.249.0 - 81.23.249.254)
- 81.23.250.*(81.23.250.0 - 81.23.250.254)
- 81.23.251.*(81.23.251.0 - 81.23.251.254)
- 81.23.252.*(81.23.252.0 - 81.23.252.254)
- 81.23.253.*(81.23.253.0 - 81.23.253.254)
- 81.23.254.*(81.23.254.0 - 81.23.254.254)
- 81.23.255.*(81.23.255.0 - 81.23.255.254)
