IP 地址列表: 12.*.*.* (12.0.*.* - 12.255.*.*)

IPSHU ^©

您在這裡

這是第壹個字節為12，第二個字節在0 - 255之間，第三、第四字節可變動（下面為星號）的IP地址列表，表示為12.*.*.* (12.0.0.0 - 12.255.255.255)。

這個IP地址列表中包含256 * 256 * 256 = 16,777,216個IP地址，我們以其中壹個IP地址12.1.1.1為例，來描述這個IP的屬性：

第一個 IP 地址示例

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。

12.0.*.*(12.0.0.0 - 12.0.255.255)
12.1.*.*(12.1.0.0 - 12.1.255.255)
12.2.*.*(12.2.0.0 - 12.2.255.255)
12.3.*.*(12.3.0.0 - 12.3.255.255)
12.4.*.*(12.4.0.0 - 12.4.255.255)
12.5.*.*(12.5.0.0 - 12.5.255.255)
12.6.*.*(12.6.0.0 - 12.6.255.255)
12.7.*.*(12.7.0.0 - 12.7.255.255)
12.8.*.*(12.8.0.0 - 12.8.255.255)
12.9.*.*(12.9.0.0 - 12.9.255.255)
12.10.*.*(12.10.0.0 - 12.10.255.255)
12.11.*.*(12.11.0.0 - 12.11.255.255)
12.12.*.*(12.12.0.0 - 12.12.255.255)
12.13.*.*(12.13.0.0 - 12.13.255.255)
12.14.*.*(12.14.0.0 - 12.14.255.255)
12.15.*.*(12.15.0.0 - 12.15.255.255)
12.16.*.*(12.16.0.0 - 12.16.255.255)
12.17.*.*(12.17.0.0 - 12.17.255.255)
12.18.*.*(12.18.0.0 - 12.18.255.255)
12.19.*.*(12.19.0.0 - 12.19.255.255)
12.20.*.*(12.20.0.0 - 12.20.255.255)
12.21.*.*(12.21.0.0 - 12.21.255.255)
12.22.*.*(12.22.0.0 - 12.22.255.255)
12.23.*.*(12.23.0.0 - 12.23.255.255)
12.24.*.*(12.24.0.0 - 12.24.255.255)
12.25.*.*(12.25.0.0 - 12.25.255.255)
12.26.*.*(12.26.0.0 - 12.26.255.255)
12.27.*.*(12.27.0.0 - 12.27.255.255)
12.28.*.*(12.28.0.0 - 12.28.255.255)
12.29.*.*(12.29.0.0 - 12.29.255.255)
12.30.*.*(12.30.0.0 - 12.30.255.255)
12.31.*.*(12.31.0.0 - 12.31.255.255)
12.32.*.*(12.32.0.0 - 12.32.255.255)
12.33.*.*(12.33.0.0 - 12.33.255.255)
12.34.*.*(12.34.0.0 - 12.34.255.255)
12.35.*.*(12.35.0.0 - 12.35.255.255)
12.36.*.*(12.36.0.0 - 12.36.255.255)
12.37.*.*(12.37.0.0 - 12.37.255.255)
12.38.*.*(12.38.0.0 - 12.38.255.255)
12.39.*.*(12.39.0.0 - 12.39.255.255)
12.40.*.*(12.40.0.0 - 12.40.255.255)
12.41.*.*(12.41.0.0 - 12.41.255.255)
12.42.*.*(12.42.0.0 - 12.42.255.255)
12.43.*.*(12.43.0.0 - 12.43.255.255)
12.44.*.*(12.44.0.0 - 12.44.255.255)
12.45.*.*(12.45.0.0 - 12.45.255.255)
12.46.*.*(12.46.0.0 - 12.46.255.255)
12.47.*.*(12.47.0.0 - 12.47.255.255)
12.48.*.*(12.48.0.0 - 12.48.255.255)
12.49.*.*(12.49.0.0 - 12.49.255.255)
12.50.*.*(12.50.0.0 - 12.50.255.255)
12.51.*.*(12.51.0.0 - 12.51.255.255)
12.52.*.*(12.52.0.0 - 12.52.255.255)
12.53.*.*(12.53.0.0 - 12.53.255.255)
12.54.*.*(12.54.0.0 - 12.54.255.255)
12.55.*.*(12.55.0.0 - 12.55.255.255)
12.56.*.*(12.56.0.0 - 12.56.255.255)
12.57.*.*(12.57.0.0 - 12.57.255.255)
12.58.*.*(12.58.0.0 - 12.58.255.255)
12.59.*.*(12.59.0.0 - 12.59.255.255)
12.60.*.*(12.60.0.0 - 12.60.255.255)
12.61.*.*(12.61.0.0 - 12.61.255.255)
12.62.*.*(12.62.0.0 - 12.62.255.255)
12.63.*.*(12.63.0.0 - 12.63.255.255)
12.64.*.*(12.64.0.0 - 12.64.255.255)
12.65.*.*(12.65.0.0 - 12.65.255.255)
12.66.*.*(12.66.0.0 - 12.66.255.255)
12.67.*.*(12.67.0.0 - 12.67.255.255)
12.68.*.*(12.68.0.0 - 12.68.255.255)
12.69.*.*(12.69.0.0 - 12.69.255.255)
12.70.*.*(12.70.0.0 - 12.70.255.255)
12.71.*.*(12.71.0.0 - 12.71.255.255)
12.72.*.*(12.72.0.0 - 12.72.255.255)
12.73.*.*(12.73.0.0 - 12.73.255.255)
12.74.*.*(12.74.0.0 - 12.74.255.255)
12.75.*.*(12.75.0.0 - 12.75.255.255)
12.76.*.*(12.76.0.0 - 12.76.255.255)
12.77.*.*(12.77.0.0 - 12.77.255.255)
12.78.*.*(12.78.0.0 - 12.78.255.255)
12.79.*.*(12.79.0.0 - 12.79.255.255)
12.80.*.*(12.80.0.0 - 12.80.255.255)
12.81.*.*(12.81.0.0 - 12.81.255.255)
12.82.*.*(12.82.0.0 - 12.82.255.255)
12.83.*.*(12.83.0.0 - 12.83.255.255)
12.84.*.*(12.84.0.0 - 12.84.255.255)
12.85.*.*(12.85.0.0 - 12.85.255.255)
12.86.*.*(12.86.0.0 - 12.86.255.255)
12.87.*.*(12.87.0.0 - 12.87.255.255)
12.88.*.*(12.88.0.0 - 12.88.255.255)
12.89.*.*(12.89.0.0 - 12.89.255.255)
12.90.*.*(12.90.0.0 - 12.90.255.255)
12.91.*.*(12.91.0.0 - 12.91.255.255)
12.92.*.*(12.92.0.0 - 12.92.255.255)
12.93.*.*(12.93.0.0 - 12.93.255.255)
12.94.*.*(12.94.0.0 - 12.94.255.255)
12.95.*.*(12.95.0.0 - 12.95.255.255)
12.96.*.*(12.96.0.0 - 12.96.255.255)
12.97.*.*(12.97.0.0 - 12.97.255.255)
12.98.*.*(12.98.0.0 - 12.98.255.255)
12.99.*.*(12.99.0.0 - 12.99.255.255)
12.100.*.*(12.100.0.0 - 12.100.255.255)
12.101.*.*(12.101.0.0 - 12.101.255.255)
12.102.*.*(12.102.0.0 - 12.102.255.255)
12.103.*.*(12.103.0.0 - 12.103.255.255)
12.104.*.*(12.104.0.0 - 12.104.255.255)
12.105.*.*(12.105.0.0 - 12.105.255.255)
12.106.*.*(12.106.0.0 - 12.106.255.255)
12.107.*.*(12.107.0.0 - 12.107.255.255)
12.108.*.*(12.108.0.0 - 12.108.255.255)
12.109.*.*(12.109.0.0 - 12.109.255.255)
12.110.*.*(12.110.0.0 - 12.110.255.255)
12.111.*.*(12.111.0.0 - 12.111.255.255)
12.112.*.*(12.112.0.0 - 12.112.255.255)
12.113.*.*(12.113.0.0 - 12.113.255.255)
12.114.*.*(12.114.0.0 - 12.114.255.255)
12.115.*.*(12.115.0.0 - 12.115.255.255)
12.116.*.*(12.116.0.0 - 12.116.255.255)
12.117.*.*(12.117.0.0 - 12.117.255.255)
12.118.*.*(12.118.0.0 - 12.118.255.255)
12.119.*.*(12.119.0.0 - 12.119.255.255)
12.120.*.*(12.120.0.0 - 12.120.255.255)
12.121.*.*(12.121.0.0 - 12.121.255.255)
12.122.*.*(12.122.0.0 - 12.122.255.255)
12.123.*.*(12.123.0.0 - 12.123.255.255)
12.124.*.*(12.124.0.0 - 12.124.255.255)
12.125.*.*(12.125.0.0 - 12.125.255.255)
12.126.*.*(12.126.0.0 - 12.126.255.255)
12.127.*.*(12.127.0.0 - 12.127.255.255)
12.128.*.*(12.128.0.0 - 12.128.255.255)
12.129.*.*(12.129.0.0 - 12.129.255.255)
12.130.*.*(12.130.0.0 - 12.130.255.255)
12.131.*.*(12.131.0.0 - 12.131.255.255)
12.132.*.*(12.132.0.0 - 12.132.255.255)
12.133.*.*(12.133.0.0 - 12.133.255.255)
12.134.*.*(12.134.0.0 - 12.134.255.255)
12.135.*.*(12.135.0.0 - 12.135.255.255)
12.136.*.*(12.136.0.0 - 12.136.255.255)
12.137.*.*(12.137.0.0 - 12.137.255.255)
12.138.*.*(12.138.0.0 - 12.138.255.255)
12.139.*.*(12.139.0.0 - 12.139.255.255)
12.140.*.*(12.140.0.0 - 12.140.255.255)
12.141.*.*(12.141.0.0 - 12.141.255.255)
12.142.*.*(12.142.0.0 - 12.142.255.255)
12.143.*.*(12.143.0.0 - 12.143.255.255)
12.144.*.*(12.144.0.0 - 12.144.255.255)
12.145.*.*(12.145.0.0 - 12.145.255.255)
12.146.*.*(12.146.0.0 - 12.146.255.255)
12.147.*.*(12.147.0.0 - 12.147.255.255)
12.148.*.*(12.148.0.0 - 12.148.255.255)
12.149.*.*(12.149.0.0 - 12.149.255.255)
12.150.*.*(12.150.0.0 - 12.150.255.255)
12.151.*.*(12.151.0.0 - 12.151.255.255)
12.152.*.*(12.152.0.0 - 12.152.255.255)
12.153.*.*(12.153.0.0 - 12.153.255.255)
12.154.*.*(12.154.0.0 - 12.154.255.255)
12.155.*.*(12.155.0.0 - 12.155.255.255)
12.156.*.*(12.156.0.0 - 12.156.255.255)
12.157.*.*(12.157.0.0 - 12.157.255.255)
12.158.*.*(12.158.0.0 - 12.158.255.255)
12.159.*.*(12.159.0.0 - 12.159.255.255)
12.160.*.*(12.160.0.0 - 12.160.255.255)
12.161.*.*(12.161.0.0 - 12.161.255.255)
12.162.*.*(12.162.0.0 - 12.162.255.255)
12.163.*.*(12.163.0.0 - 12.163.255.255)
12.164.*.*(12.164.0.0 - 12.164.255.255)
12.165.*.*(12.165.0.0 - 12.165.255.255)
12.166.*.*(12.166.0.0 - 12.166.255.255)
12.167.*.*(12.167.0.0 - 12.167.255.255)
12.168.*.*(12.168.0.0 - 12.168.255.255)
12.169.*.*(12.169.0.0 - 12.169.255.255)
12.170.*.*(12.170.0.0 - 12.170.255.255)
12.171.*.*(12.171.0.0 - 12.171.255.255)
12.172.*.*(12.172.0.0 - 12.172.255.255)
12.173.*.*(12.173.0.0 - 12.173.255.255)
12.174.*.*(12.174.0.0 - 12.174.255.255)
12.175.*.*(12.175.0.0 - 12.175.255.255)
12.176.*.*(12.176.0.0 - 12.176.255.255)
12.177.*.*(12.177.0.0 - 12.177.255.255)
12.178.*.*(12.178.0.0 - 12.178.255.255)
12.179.*.*(12.179.0.0 - 12.179.255.255)
12.180.*.*(12.180.0.0 - 12.180.255.255)
12.181.*.*(12.181.0.0 - 12.181.255.255)
12.182.*.*(12.182.0.0 - 12.182.255.255)
12.183.*.*(12.183.0.0 - 12.183.255.255)
12.184.*.*(12.184.0.0 - 12.184.255.255)
12.185.*.*(12.185.0.0 - 12.185.255.255)
12.186.*.*(12.186.0.0 - 12.186.255.255)
12.187.*.*(12.187.0.0 - 12.187.255.255)
12.188.*.*(12.188.0.0 - 12.188.255.255)
12.189.*.*(12.189.0.0 - 12.189.255.255)
12.190.*.*(12.190.0.0 - 12.190.255.255)
12.191.*.*(12.191.0.0 - 12.191.255.255)
12.192.*.*(12.192.0.0 - 12.192.255.255)
12.193.*.*(12.193.0.0 - 12.193.255.255)
12.194.*.*(12.194.0.0 - 12.194.255.255)
12.195.*.*(12.195.0.0 - 12.195.255.255)
12.196.*.*(12.196.0.0 - 12.196.255.255)
12.197.*.*(12.197.0.0 - 12.197.255.255)
12.198.*.*(12.198.0.0 - 12.198.255.255)
12.199.*.*(12.199.0.0 - 12.199.255.255)
12.200.*.*(12.200.0.0 - 12.200.255.255)
12.201.*.*(12.201.0.0 - 12.201.255.255)
12.202.*.*(12.202.0.0 - 12.202.255.255)
12.203.*.*(12.203.0.0 - 12.203.255.255)
12.204.*.*(12.204.0.0 - 12.204.255.255)
12.205.*.*(12.205.0.0 - 12.205.255.255)
12.206.*.*(12.206.0.0 - 12.206.255.255)
12.207.*.*(12.207.0.0 - 12.207.255.255)
12.208.*.*(12.208.0.0 - 12.208.255.255)
12.209.*.*(12.209.0.0 - 12.209.255.255)
12.210.*.*(12.210.0.0 - 12.210.255.255)
12.211.*.*(12.211.0.0 - 12.211.255.255)
12.212.*.*(12.212.0.0 - 12.212.255.255)
12.213.*.*(12.213.0.0 - 12.213.255.255)
12.214.*.*(12.214.0.0 - 12.214.255.255)
12.215.*.*(12.215.0.0 - 12.215.255.255)
12.216.*.*(12.216.0.0 - 12.216.255.255)
12.217.*.*(12.217.0.0 - 12.217.255.255)
12.218.*.*(12.218.0.0 - 12.218.255.255)
12.219.*.*(12.219.0.0 - 12.219.255.255)
12.220.*.*(12.220.0.0 - 12.220.255.255)
12.221.*.*(12.221.0.0 - 12.221.255.255)
12.222.*.*(12.222.0.0 - 12.222.255.255)
12.223.*.*(12.223.0.0 - 12.223.255.255)
12.224.*.*(12.224.0.0 - 12.224.255.255)
12.225.*.*(12.225.0.0 - 12.225.255.255)
12.226.*.*(12.226.0.0 - 12.226.255.255)
12.227.*.*(12.227.0.0 - 12.227.255.255)
12.228.*.*(12.228.0.0 - 12.228.255.255)
12.229.*.*(12.229.0.0 - 12.229.255.255)
12.230.*.*(12.230.0.0 - 12.230.255.255)
12.231.*.*(12.231.0.0 - 12.231.255.255)
12.232.*.*(12.232.0.0 - 12.232.255.255)
12.233.*.*(12.233.0.0 - 12.233.255.255)
12.234.*.*(12.234.0.0 - 12.234.255.255)
12.235.*.*(12.235.0.0 - 12.235.255.255)
12.236.*.*(12.236.0.0 - 12.236.255.255)
12.237.*.*(12.237.0.0 - 12.237.255.255)
12.238.*.*(12.238.0.0 - 12.238.255.255)
12.239.*.*(12.239.0.0 - 12.239.255.255)
12.240.*.*(12.240.0.0 - 12.240.255.255)
12.241.*.*(12.241.0.0 - 12.241.255.255)
12.242.*.*(12.242.0.0 - 12.242.255.255)
12.243.*.*(12.243.0.0 - 12.243.255.255)
12.244.*.*(12.244.0.0 - 12.244.255.255)
12.245.*.*(12.245.0.0 - 12.245.255.255)
12.246.*.*(12.246.0.0 - 12.246.255.255)
12.247.*.*(12.247.0.0 - 12.247.255.255)
12.248.*.*(12.248.0.0 - 12.248.255.255)
12.249.*.*(12.249.0.0 - 12.249.255.255)
12.250.*.*(12.250.0.0 - 12.250.255.255)
12.251.*.*(12.251.0.0 - 12.251.255.255)
12.252.*.*(12.252.0.0 - 12.252.255.255)
12.253.*.*(12.253.0.0 - 12.253.255.255)
12.254.*.*(12.254.0.0 - 12.254.255.255)
12.255.*.*(12.255.0.0 - 12.255.255.255)

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您在這裡

IP 地址列表: 12...* (12.0.. - 12.255..)

內容:

1. 第一個 IP 地址示例

2. A類IP地址列表

3. 最後一個 IP 地址示例

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