IPIP 地址列表: 215.21.*.* (215.21.0.* - 215.21.255.*)
這是第壹個字節為215，第二個字節為21，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215.21.*.* (215.21.0.0 - 215.21.255.255)。
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215.21.1.1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. C類IP地址列表
C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，前三段號碼（字節1.字節2.字節3）為網絡號碼，剩下的後壹段號碼（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，C類IP地址就由３字節的網絡地址和1字節主機地址組成，網絡地址的最高位必須是'110'。 C類IP地址範圍：192.0.0.0 ~ 223.255.255.255，可用IP地址範圍：192.0.0.1 ~ 223.255.255.254。 C類IP地址中網絡的標識長度為21位，主機標識的長度為8位，C類網絡地址數量較多（2 ^ 21 = 2097152個），適用於小規模的局域網絡，每個網絡最多只能包含254臺計算機（2 ^ 8 - 2 = 254個）。 如果您需要了解C類IP地址段詳情，可以點擊C類IP地址列表中的標題鏈接。
- 215.21.0.*(215.21.0.0 - 215.21.0.254)
- 215.21.1.*(215.21.1.0 - 215.21.1.254)
- 215.21.2.*(215.21.2.0 - 215.21.2.254)
- 215.21.3.*(215.21.3.0 - 215.21.3.254)
- 215.21.4.*(215.21.4.0 - 215.21.4.254)
- 215.21.5.*(215.21.5.0 - 215.21.5.254)
- 215.21.6.*(215.21.6.0 - 215.21.6.254)
- 215.21.7.*(215.21.7.0 - 215.21.7.254)
- 215.21.8.*(215.21.8.0 - 215.21.8.254)
- 215.21.9.*(215.21.9.0 - 215.21.9.254)
- 215.21.10.*(215.21.10.0 - 215.21.10.254)
- 215.21.11.*(215.21.11.0 - 215.21.11.254)
- 215.21.12.*(215.21.12.0 - 215.21.12.254)
- 215.21.13.*(215.21.13.0 - 215.21.13.254)
- 215.21.14.*(215.21.14.0 - 215.21.14.254)
- 215.21.15.*(215.21.15.0 - 215.21.15.254)
- 215.21.16.*(215.21.16.0 - 215.21.16.254)
- 215.21.17.*(215.21.17.0 - 215.21.17.254)
- 215.21.18.*(215.21.18.0 - 215.21.18.254)
- 215.21.19.*(215.21.19.0 - 215.21.19.254)
- 215.21.20.*(215.21.20.0 - 215.21.20.254)
- 215.21.21.*(215.21.21.0 - 215.21.21.254)
- 215.21.22.*(215.21.22.0 - 215.21.22.254)
- 215.21.23.*(215.21.23.0 - 215.21.23.254)
- 215.21.24.*(215.21.24.0 - 215.21.24.254)
- 215.21.25.*(215.21.25.0 - 215.21.25.254)
- 215.21.26.*(215.21.26.0 - 215.21.26.254)
- 215.21.27.*(215.21.27.0 - 215.21.27.254)
- 215.21.28.*(215.21.28.0 - 215.21.28.254)
- 215.21.29.*(215.21.29.0 - 215.21.29.254)
- 215.21.30.*(215.21.30.0 - 215.21.30.254)
- 215.21.31.*(215.21.31.0 - 215.21.31.254)
- 215.21.32.*(215.21.32.0 - 215.21.32.254)
- 215.21.33.*(215.21.33.0 - 215.21.33.254)
- 215.21.34.*(215.21.34.0 - 215.21.34.254)
- 215.21.35.*(215.21.35.0 - 215.21.35.254)
- 215.21.36.*(215.21.36.0 - 215.21.36.254)
- 215.21.37.*(215.21.37.0 - 215.21.37.254)
- 215.21.38.*(215.21.38.0 - 215.21.38.254)
- 215.21.39.*(215.21.39.0 - 215.21.39.254)
- 215.21.40.*(215.21.40.0 - 215.21.40.254)
- 215.21.41.*(215.21.41.0 - 215.21.41.254)
- 215.21.42.*(215.21.42.0 - 215.21.42.254)
- 215.21.43.*(215.21.43.0 - 215.21.43.254)
- 215.21.44.*(215.21.44.0 - 215.21.44.254)
- 215.21.45.*(215.21.45.0 - 215.21.45.254)
- 215.21.46.*(215.21.46.0 - 215.21.46.254)
- 215.21.47.*(215.21.47.0 - 215.21.47.254)
- 215.21.48.*(215.21.48.0 - 215.21.48.254)
- 215.21.49.*(215.21.49.0 - 215.21.49.254)
- 215.21.50.*(215.21.50.0 - 215.21.50.254)
- 215.21.51.*(215.21.51.0 - 215.21.51.254)
- 215.21.52.*(215.21.52.0 - 215.21.52.254)
- 215.21.53.*(215.21.53.0 - 215.21.53.254)
- 215.21.54.*(215.21.54.0 - 215.21.54.254)
- 215.21.55.*(215.21.55.0 - 215.21.55.254)
- 215.21.56.*(215.21.56.0 - 215.21.56.254)
- 215.21.57.*(215.21.57.0 - 215.21.57.254)
- 215.21.58.*(215.21.58.0 - 215.21.58.254)
- 215.21.59.*(215.21.59.0 - 215.21.59.254)
- 215.21.60.*(215.21.60.0 - 215.21.60.254)
- 215.21.61.*(215.21.61.0 - 215.21.61.254)
- 215.21.62.*(215.21.62.0 - 215.21.62.254)
- 215.21.63.*(215.21.63.0 - 215.21.63.254)
- 215.21.64.*(215.21.64.0 - 215.21.64.254)
- 215.21.65.*(215.21.65.0 - 215.21.65.254)
- 215.21.66.*(215.21.66.0 - 215.21.66.254)
- 215.21.67.*(215.21.67.0 - 215.21.67.254)
- 215.21.68.*(215.21.68.0 - 215.21.68.254)
- 215.21.69.*(215.21.69.0 - 215.21.69.254)
- 215.21.70.*(215.21.70.0 - 215.21.70.254)
- 215.21.71.*(215.21.71.0 - 215.21.71.254)
- 215.21.72.*(215.21.72.0 - 215.21.72.254)
- 215.21.73.*(215.21.73.0 - 215.21.73.254)
- 215.21.74.*(215.21.74.0 - 215.21.74.254)
- 215.21.75.*(215.21.75.0 - 215.21.75.254)
- 215.21.76.*(215.21.76.0 - 215.21.76.254)
- 215.21.77.*(215.21.77.0 - 215.21.77.254)
- 215.21.78.*(215.21.78.0 - 215.21.78.254)
- 215.21.79.*(215.21.79.0 - 215.21.79.254)
- 215.21.80.*(215.21.80.0 - 215.21.80.254)
- 215.21.81.*(215.21.81.0 - 215.21.81.254)
- 215.21.82.*(215.21.82.0 - 215.21.82.254)
- 215.21.83.*(215.21.83.0 - 215.21.83.254)
- 215.21.84.*(215.21.84.0 - 215.21.84.254)
- 215.21.85.*(215.21.85.0 - 215.21.85.254)
- 215.21.86.*(215.21.86.0 - 215.21.86.254)
- 215.21.87.*(215.21.87.0 - 215.21.87.254)
- 215.21.88.*(215.21.88.0 - 215.21.88.254)
- 215.21.89.*(215.21.89.0 - 215.21.89.254)
- 215.21.90.*(215.21.90.0 - 215.21.90.254)
- 215.21.91.*(215.21.91.0 - 215.21.91.254)
- 215.21.92.*(215.21.92.0 - 215.21.92.254)
- 215.21.93.*(215.21.93.0 - 215.21.93.254)
- 215.21.94.*(215.21.94.0 - 215.21.94.254)
- 215.21.95.*(215.21.95.0 - 215.21.95.254)
- 215.21.96.*(215.21.96.0 - 215.21.96.254)
- 215.21.97.*(215.21.97.0 - 215.21.97.254)
- 215.21.98.*(215.21.98.0 - 215.21.98.254)
- 215.21.99.*(215.21.99.0 - 215.21.99.254)
- 215.21.100.*(215.21.100.0 - 215.21.100.254)
- 215.21.101.*(215.21.101.0 - 215.21.101.254)
- 215.21.102.*(215.21.102.0 - 215.21.102.254)
- 215.21.103.*(215.21.103.0 - 215.21.103.254)
- 215.21.104.*(215.21.104.0 - 215.21.104.254)
- 215.21.105.*(215.21.105.0 - 215.21.105.254)
- 215.21.106.*(215.21.106.0 - 215.21.106.254)
- 215.21.107.*(215.21.107.0 - 215.21.107.254)
- 215.21.108.*(215.21.108.0 - 215.21.108.254)
- 215.21.109.*(215.21.109.0 - 215.21.109.254)
- 215.21.110.*(215.21.110.0 - 215.21.110.254)
- 215.21.111.*(215.21.111.0 - 215.21.111.254)
- 215.21.112.*(215.21.112.0 - 215.21.112.254)
- 215.21.113.*(215.21.113.0 - 215.21.113.254)
- 215.21.114.*(215.21.114.0 - 215.21.114.254)
- 215.21.115.*(215.21.115.0 - 215.21.115.254)
- 215.21.116.*(215.21.116.0 - 215.21.116.254)
- 215.21.117.*(215.21.117.0 - 215.21.117.254)
- 215.21.118.*(215.21.118.0 - 215.21.118.254)
- 215.21.119.*(215.21.119.0 - 215.21.119.254)
- 215.21.120.*(215.21.120.0 - 215.21.120.254)
- 215.21.121.*(215.21.121.0 - 215.21.121.254)
- 215.21.122.*(215.21.122.0 - 215.21.122.254)
- 215.21.123.*(215.21.123.0 - 215.21.123.254)
- 215.21.124.*(215.21.124.0 - 215.21.124.254)
- 215.21.125.*(215.21.125.0 - 215.21.125.254)
- 215.21.126.*(215.21.126.0 - 215.21.126.254)
- 215.21.127.*(215.21.127.0 - 215.21.127.254)
- 215.21.128.*(215.21.128.0 - 215.21.128.254)
- 215.21.129.*(215.21.129.0 - 215.21.129.254)
- 215.21.130.*(215.21.130.0 - 215.21.130.254)
- 215.21.131.*(215.21.131.0 - 215.21.131.254)
- 215.21.132.*(215.21.132.0 - 215.21.132.254)
- 215.21.133.*(215.21.133.0 - 215.21.133.254)
- 215.21.134.*(215.21.134.0 - 215.21.134.254)
- 215.21.135.*(215.21.135.0 - 215.21.135.254)
- 215.21.136.*(215.21.136.0 - 215.21.136.254)
- 215.21.137.*(215.21.137.0 - 215.21.137.254)
- 215.21.138.*(215.21.138.0 - 215.21.138.254)
- 215.21.139.*(215.21.139.0 - 215.21.139.254)
- 215.21.140.*(215.21.140.0 - 215.21.140.254)
- 215.21.141.*(215.21.141.0 - 215.21.141.254)
- 215.21.142.*(215.21.142.0 - 215.21.142.254)
- 215.21.143.*(215.21.143.0 - 215.21.143.254)
- 215.21.144.*(215.21.144.0 - 215.21.144.254)
- 215.21.145.*(215.21.145.0 - 215.21.145.254)
- 215.21.146.*(215.21.146.0 - 215.21.146.254)
- 215.21.147.*(215.21.147.0 - 215.21.147.254)
- 215.21.148.*(215.21.148.0 - 215.21.148.254)
- 215.21.149.*(215.21.149.0 - 215.21.149.254)
- 215.21.150.*(215.21.150.0 - 215.21.150.254)
- 215.21.151.*(215.21.151.0 - 215.21.151.254)
- 215.21.152.*(215.21.152.0 - 215.21.152.254)
- 215.21.153.*(215.21.153.0 - 215.21.153.254)
- 215.21.154.*(215.21.154.0 - 215.21.154.254)
- 215.21.155.*(215.21.155.0 - 215.21.155.254)
- 215.21.156.*(215.21.156.0 - 215.21.156.254)
- 215.21.157.*(215.21.157.0 - 215.21.157.254)
- 215.21.158.*(215.21.158.0 - 215.21.158.254)
- 215.21.159.*(215.21.159.0 - 215.21.159.254)
- 215.21.160.*(215.21.160.0 - 215.21.160.254)
- 215.21.161.*(215.21.161.0 - 215.21.161.254)
- 215.21.162.*(215.21.162.0 - 215.21.162.254)
- 215.21.163.*(215.21.163.0 - 215.21.163.254)
- 215.21.164.*(215.21.164.0 - 215.21.164.254)
- 215.21.165.*(215.21.165.0 - 215.21.165.254)
- 215.21.166.*(215.21.166.0 - 215.21.166.254)
- 215.21.167.*(215.21.167.0 - 215.21.167.254)
- 215.21.168.*(215.21.168.0 - 215.21.168.254)
- 215.21.169.*(215.21.169.0 - 215.21.169.254)
- 215.21.170.*(215.21.170.0 - 215.21.170.254)
- 215.21.171.*(215.21.171.0 - 215.21.171.254)
- 215.21.172.*(215.21.172.0 - 215.21.172.254)
- 215.21.173.*(215.21.173.0 - 215.21.173.254)
- 215.21.174.*(215.21.174.0 - 215.21.174.254)
- 215.21.175.*(215.21.175.0 - 215.21.175.254)
- 215.21.176.*(215.21.176.0 - 215.21.176.254)
- 215.21.177.*(215.21.177.0 - 215.21.177.254)
- 215.21.178.*(215.21.178.0 - 215.21.178.254)
- 215.21.179.*(215.21.179.0 - 215.21.179.254)
- 215.21.180.*(215.21.180.0 - 215.21.180.254)
- 215.21.181.*(215.21.181.0 - 215.21.181.254)
- 215.21.182.*(215.21.182.0 - 215.21.182.254)
- 215.21.183.*(215.21.183.0 - 215.21.183.254)
- 215.21.184.*(215.21.184.0 - 215.21.184.254)
- 215.21.185.*(215.21.185.0 - 215.21.185.254)
- 215.21.186.*(215.21.186.0 - 215.21.186.254)
- 215.21.187.*(215.21.187.0 - 215.21.187.254)
- 215.21.188.*(215.21.188.0 - 215.21.188.254)
- 215.21.189.*(215.21.189.0 - 215.21.189.254)
- 215.21.190.*(215.21.190.0 - 215.21.190.254)
- 215.21.191.*(215.21.191.0 - 215.21.191.254)
- 215.21.192.*(215.21.192.0 - 215.21.192.254)
- 215.21.193.*(215.21.193.0 - 215.21.193.254)
- 215.21.194.*(215.21.194.0 - 215.21.194.254)
- 215.21.195.*(215.21.195.0 - 215.21.195.254)
- 215.21.196.*(215.21.196.0 - 215.21.196.254)
- 215.21.197.*(215.21.197.0 - 215.21.197.254)
- 215.21.198.*(215.21.198.0 - 215.21.198.254)
- 215.21.199.*(215.21.199.0 - 215.21.199.254)
- 215.21.200.*(215.21.200.0 - 215.21.200.254)
- 215.21.201.*(215.21.201.0 - 215.21.201.254)
- 215.21.202.*(215.21.202.0 - 215.21.202.254)
- 215.21.203.*(215.21.203.0 - 215.21.203.254)
- 215.21.204.*(215.21.204.0 - 215.21.204.254)
- 215.21.205.*(215.21.205.0 - 215.21.205.254)
- 215.21.206.*(215.21.206.0 - 215.21.206.254)
- 215.21.207.*(215.21.207.0 - 215.21.207.254)
- 215.21.208.*(215.21.208.0 - 215.21.208.254)
- 215.21.209.*(215.21.209.0 - 215.21.209.254)
- 215.21.210.*(215.21.210.0 - 215.21.210.254)
- 215.21.211.*(215.21.211.0 - 215.21.211.254)
- 215.21.212.*(215.21.212.0 - 215.21.212.254)
- 215.21.213.*(215.21.213.0 - 215.21.213.254)
- 215.21.214.*(215.21.214.0 - 215.21.214.254)
- 215.21.215.*(215.21.215.0 - 215.21.215.254)
- 215.21.216.*(215.21.216.0 - 215.21.216.254)
- 215.21.217.*(215.21.217.0 - 215.21.217.254)
- 215.21.218.*(215.21.218.0 - 215.21.218.254)
- 215.21.219.*(215.21.219.0 - 215.21.219.254)
- 215.21.220.*(215.21.220.0 - 215.21.220.254)
- 215.21.221.*(215.21.221.0 - 215.21.221.254)
- 215.21.222.*(215.21.222.0 - 215.21.222.254)
- 215.21.223.*(215.21.223.0 - 215.21.223.254)
- 215.21.224.*(215.21.224.0 - 215.21.224.254)
- 215.21.225.*(215.21.225.0 - 215.21.225.254)
- 215.21.226.*(215.21.226.0 - 215.21.226.254)
- 215.21.227.*(215.21.227.0 - 215.21.227.254)
- 215.21.228.*(215.21.228.0 - 215.21.228.254)
- 215.21.229.*(215.21.229.0 - 215.21.229.254)
- 215.21.230.*(215.21.230.0 - 215.21.230.254)
- 215.21.231.*(215.21.231.0 - 215.21.231.254)
- 215.21.232.*(215.21.232.0 - 215.21.232.254)
- 215.21.233.*(215.21.233.0 - 215.21.233.254)
- 215.21.234.*(215.21.234.0 - 215.21.234.254)
- 215.21.235.*(215.21.235.0 - 215.21.235.254)
- 215.21.236.*(215.21.236.0 - 215.21.236.254)
- 215.21.237.*(215.21.237.0 - 215.21.237.254)
- 215.21.238.*(215.21.238.0 - 215.21.238.254)
- 215.21.239.*(215.21.239.0 - 215.21.239.254)
- 215.21.240.*(215.21.240.0 - 215.21.240.254)
- 215.21.241.*(215.21.241.0 - 215.21.241.254)
- 215.21.242.*(215.21.242.0 - 215.21.242.254)
- 215.21.243.*(215.21.243.0 - 215.21.243.254)
- 215.21.244.*(215.21.244.0 - 215.21.244.254)
- 215.21.245.*(215.21.245.0 - 215.21.245.254)
- 215.21.246.*(215.21.246.0 - 215.21.246.254)
- 215.21.247.*(215.21.247.0 - 215.21.247.254)
- 215.21.248.*(215.21.248.0 - 215.21.248.254)
- 215.21.249.*(215.21.249.0 - 215.21.249.254)
- 215.21.250.*(215.21.250.0 - 215.21.250.254)
- 215.21.251.*(215.21.251.0 - 215.21.251.254)
- 215.21.252.*(215.21.252.0 - 215.21.252.254)
- 215.21.253.*(215.21.253.0 - 215.21.253.254)
- 215.21.254.*(215.21.254.0 - 215.21.254.254)
- 215.21.255.*(215.21.255.0 - 215.21.255.254)
