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IP 網段

Namecheap IP 網段清單

Namecheap（AS22612）目前在公網上宣告的全部 IPv4 與 IPv6 網段，含 CIDR 與起訖 IP，可免費下載 TXT / CSV。資料快照日期：2026-11-02。

Namecheap 透過 AS22612 宣告了 327 個 IPv4 前綴（共涵蓋 82,752 個位址）與 6 個 IPv6 前綴。下面的清單是 2026-11-02 從公開 BGP 路由表取得的快照，依位址順序排列、保持公告原樣。

ASNAS22612
IPv4 前綴數327
IPv4 位址總數82,752互相包含的部分只算一次
IPv6 前綴數6
資料快照日期

下載完整清單

完整清單共 333 筆（IPv4 與 IPv6）。TXT 一行一個 CIDR；CSV 含 cidr、version、start_ip、end_ip、addresses 五欄。

下載 TXT下載 CSV僅 IPv4（TXT）僅 IPv6（TXT）

Namecheap 的 IPv4 位址段

Namecheap 宣告的 IPv4 網段：CIDR、起始與結束 IP、位址數
CIDR起始 IP – 結束 IP位址數
63.250.32.0/2063.250.32.0–63.250.47.2554,096
63.250.32.0/2463.250.32.0–63.250.32.255256
63.250.33.0/2463.250.33.0–63.250.33.255256
63.250.34.0/2463.250.34.0–63.250.34.255256
63.250.35.0/2463.250.35.0–63.250.35.255256
63.250.36.0/2463.250.36.0–63.250.36.255256
63.250.37.0/2463.250.37.0–63.250.37.255256
63.250.38.0/2463.250.38.0–63.250.38.255256
63.250.39.0/2463.250.39.0–63.250.39.255256
63.250.40.0/2463.250.40.0–63.250.40.255256
63.250.41.0/2463.250.41.0–63.250.41.255256
63.250.42.0/2463.250.42.0–63.250.42.255256
63.250.43.0/2463.250.43.0–63.250.43.255256
63.250.44.0/2463.250.44.0–63.250.44.255256
63.250.45.0/2463.250.45.0–63.250.45.255256
63.250.46.0/2463.250.46.0–63.250.46.255256
63.250.47.0/2463.250.47.0–63.250.47.255256
66.29.128.0/1966.29.128.0–66.29.159.2558,192
66.29.128.0/2466.29.128.0–66.29.128.255256
66.29.129.0/2466.29.129.0–66.29.129.255256
66.29.130.0/2466.29.130.0–66.29.130.255256
66.29.131.0/2466.29.131.0–66.29.131.255256
66.29.132.0/2466.29.132.0–66.29.132.255256
66.29.133.0/2466.29.133.0–66.29.133.255256
66.29.134.0/2466.29.134.0–66.29.134.255256
66.29.135.0/2466.29.135.0–66.29.135.255256
66.29.136.0/2466.29.136.0–66.29.136.255256
66.29.137.0/2466.29.137.0–66.29.137.255256
66.29.138.0/2466.29.138.0–66.29.138.255256
66.29.139.0/2466.29.139.0–66.29.139.255256
66.29.140.0/2466.29.140.0–66.29.140.255256
66.29.141.0/2466.29.141.0–66.29.141.255256
66.29.142.0/2466.29.142.0–66.29.142.255256
66.29.143.0/2466.29.143.0–66.29.143.255256
66.29.144.0/2466.29.144.0–66.29.144.255256
66.29.145.0/2466.29.145.0–66.29.145.255256
66.29.146.0/2466.29.146.0–66.29.146.255256
66.29.147.0/2466.29.147.0–66.29.147.255256
66.29.148.0/2466.29.148.0–66.29.148.255256
66.29.149.0/2466.29.149.0–66.29.149.255256
66.29.150.0/2466.29.150.0–66.29.150.255256
66.29.151.0/2466.29.151.0–66.29.151.255256
66.29.152.0/2466.29.152.0–66.29.152.255256
66.29.153.0/2466.29.153.0–66.29.153.255256
66.29.154.0/2466.29.154.0–66.29.154.255256
66.29.155.0/2466.29.155.0–66.29.155.255256
66.29.156.0/2466.29.156.0–66.29.156.255256
66.29.157.0/2466.29.157.0–66.29.157.255256
66.29.159.0/2466.29.159.0–66.29.159.255256
67.223.116.0/2467.223.116.0–67.223.116.255256
67.223.117.0/2467.223.117.0–67.223.117.255256
67.223.118.0/2467.223.118.0–67.223.118.255256
67.223.119.0/2467.223.119.0–67.223.119.255256
68.65.120.0/2468.65.120.0–68.65.120.255256
68.65.121.0/2468.65.121.0–68.65.121.255256
68.65.122.0/2468.65.122.0–68.65.122.255256
68.65.123.0/2468.65.123.0–68.65.123.255256
69.57.160.0/2469.57.160.0–69.57.160.255256
69.57.161.0/2469.57.161.0–69.57.161.255256
69.57.162.0/2469.57.162.0–69.57.162.255256
69.57.163.0/2469.57.163.0–69.57.163.255256
104.207.64.0/24104.207.64.0–104.207.64.255256
104.207.65.0/24104.207.65.0–104.207.65.255256
104.207.66.0/24104.207.66.0–104.207.66.255256
104.207.67.0/24104.207.67.0–104.207.67.255256
104.207.68.0/24104.207.68.0–104.207.68.255256
104.207.69.0/24104.207.69.0–104.207.69.255256
104.207.70.0/24104.207.70.0–104.207.70.255256
104.207.71.0/24104.207.71.0–104.207.71.255256
104.207.72.0/24104.207.72.0–104.207.72.255256
104.207.73.0/24104.207.73.0–104.207.73.255256
104.207.74.0/24104.207.74.0–104.207.74.255256
104.207.75.0/24104.207.75.0–104.207.75.255256
104.207.76.0/24104.207.76.0–104.207.76.255256
104.207.77.0/24104.207.77.0–104.207.77.255256
104.207.78.0/24104.207.78.0–104.207.78.255256
104.207.79.0/24104.207.79.0–104.207.79.255256
104.207.80.0/24104.207.80.0–104.207.80.255256
104.207.81.0/24104.207.81.0–104.207.81.255256
104.207.82.0/24104.207.82.0–104.207.82.255256
104.207.83.0/24104.207.83.0–104.207.83.255256
104.207.84.0/24104.207.84.0–104.207.84.255256
104.207.85.0/24104.207.85.0–104.207.85.255256
104.207.86.0/24104.207.86.0–104.207.86.255256
104.207.87.0/24104.207.87.0–104.207.87.255256
104.207.88.0/24104.207.88.0–104.207.88.255256
104.207.89.0/24104.207.89.0–104.207.89.255256
104.207.90.0/24104.207.90.0–104.207.90.255256
104.207.91.0/24104.207.91.0–104.207.91.255256
104.207.92.0/24104.207.92.0–104.207.92.255256
104.207.93.0/24104.207.93.0–104.207.93.255256
104.207.94.0/24104.207.94.0–104.207.94.255256
104.207.95.0/24104.207.95.0–104.207.95.255256
104.219.248.0/24104.219.248.0–104.219.248.255256
104.219.249.0/24104.219.249.0–104.219.249.255256
104.219.250.0/24104.219.250.0–104.219.250.255256
104.219.251.0/24104.219.251.0–104.219.251.255256
153.79.251.0/24153.79.251.0–153.79.251.255256
153.79.252.0/24153.79.252.0–153.79.252.255256
153.79.253.0/24153.79.253.0–153.79.253.255256
153.79.254.0/24153.79.254.0–153.79.254.255256
153.79.255.0/24153.79.255.0–153.79.255.255256
159.198.32.0/24159.198.32.0–159.198.32.255256
159.198.33.0/24159.198.33.0–159.198.33.255256
159.198.34.0/24159.198.34.0–159.198.34.255256
159.198.35.0/24159.198.35.0–159.198.35.255256
159.198.36.0/24159.198.36.0–159.198.36.255256
159.198.37.0/24159.198.37.0–159.198.37.255256
159.198.39.0/24159.198.39.0–159.198.39.255256
159.198.40.0/24159.198.40.0–159.198.40.255256
159.198.41.0/24159.198.41.0–159.198.41.255256
159.198.42.0/24159.198.42.0–159.198.42.255256
159.198.43.0/24159.198.43.0–159.198.43.255256
159.198.44.0/24159.198.44.0–159.198.44.255256
159.198.45.0/24159.198.45.0–159.198.45.255256
159.198.46.0/24159.198.46.0–159.198.46.255256
159.198.47.0/24159.198.47.0–159.198.47.255256
159.198.64.0/24159.198.64.0–159.198.64.255256
159.198.65.0/24159.198.65.0–159.198.65.255256
159.198.66.0/24159.198.66.0–159.198.66.255256
159.198.67.0/24159.198.67.0–159.198.67.255256
159.198.68.0/24159.198.68.0–159.198.68.255256
159.198.69.0/24159.198.69.0–159.198.69.255256
159.198.70.0/24159.198.70.0–159.198.70.255256
159.198.71.0/24159.198.71.0–159.198.71.255256
159.198.72.0/24159.198.72.0–159.198.72.255256
159.198.73.0/24159.198.73.0–159.198.73.255256
159.198.74.0/24159.198.74.0–159.198.74.255256
159.198.75.0/24159.198.75.0–159.198.75.255256
159.198.76.0/24159.198.76.0–159.198.76.255256
159.198.77.0/24159.198.77.0–159.198.77.255256
159.198.78.0/24159.198.78.0–159.198.78.255256
159.198.79.0/24159.198.79.0–159.198.79.255256
162.0.208.0/24162.0.208.0–162.0.208.255256
162.0.209.0/24162.0.209.0–162.0.209.255256
162.0.210.0/24162.0.210.0–162.0.210.255256
162.0.211.0/24162.0.211.0–162.0.211.255256
162.0.212.0/24162.0.212.0–162.0.212.255256
162.0.213.0/24162.0.213.0–162.0.213.255256
162.0.214.0/24162.0.214.0–162.0.214.255256
162.0.215.0/24162.0.215.0–162.0.215.255256
162.0.216.0/24162.0.216.0–162.0.216.255256
162.0.217.0/24162.0.217.0–162.0.217.255256
162.0.218.0/24162.0.218.0–162.0.218.255256
162.0.219.0/24162.0.219.0–162.0.219.255256
162.0.220.0/24162.0.220.0–162.0.220.255256
162.0.221.0/24162.0.221.0–162.0.221.255256
162.0.222.0/24162.0.222.0–162.0.222.255256
162.0.223.0/24162.0.223.0–162.0.223.255256
162.0.224.0/24162.0.224.0–162.0.224.255256
162.0.225.0/24162.0.225.0–162.0.225.255256
162.0.226.0/24162.0.226.0–162.0.226.255256
162.0.227.0/24162.0.227.0–162.0.227.255256
162.0.228.0/24162.0.228.0–162.0.228.255256
162.0.229.0/24162.0.229.0–162.0.229.255256
162.0.230.0/24162.0.230.0–162.0.230.255256
162.0.231.0/24162.0.231.0–162.0.231.255256
162.0.232.0/24162.0.232.0–162.0.232.255256
162.0.233.0/24162.0.233.0–162.0.233.255256
162.0.234.0/24162.0.234.0–162.0.234.255256
162.0.235.0/24162.0.235.0–162.0.235.255256
162.0.236.0/24162.0.236.0–162.0.236.255256
162.0.237.0/24162.0.237.0–162.0.237.255256
162.0.238.0/24162.0.238.0–162.0.238.255256
162.0.239.0/24162.0.239.0–162.0.239.255256
162.213.248.0/24162.213.248.0–162.213.248.255256
162.213.249.0/24162.213.249.0–162.213.249.255256
162.213.250.0/24162.213.250.0–162.213.250.255256
162.213.251.0/24162.213.251.0–162.213.251.255256
162.213.252.0/24162.213.252.0–162.213.252.255256
162.213.253.0/24162.213.253.0–162.213.253.255256
162.213.254.0/24162.213.254.0–162.213.254.255256
162.213.255.0/24162.213.255.0–162.213.255.255256
162.254.32.0/24162.254.32.0–162.254.32.255256
162.254.33.0/24162.254.33.0–162.254.33.255256
162.254.34.0/24162.254.34.0–162.254.34.255256
162.254.35.0/24162.254.35.0–162.254.35.255256
162.254.36.0/24162.254.36.0–162.254.36.255256
162.254.37.0/24162.254.37.0–162.254.37.255256
162.254.38.0/24162.254.38.0–162.254.38.255256
162.254.39.0/24162.254.39.0–162.254.39.255256
162.255.116.0/24162.255.116.0–162.255.116.255256
162.255.117.0/24162.255.117.0–162.255.117.255256
162.255.118.0/24162.255.118.0–162.255.118.255256
162.255.119.0/24162.255.119.0–162.255.119.255256
184.94.212.0/24184.94.212.0–184.94.212.255256
184.94.213.0/24184.94.213.0–184.94.213.255256
184.94.215.0/24184.94.215.0–184.94.215.255256
185.61.152.0/22185.61.152.0–185.61.155.2551,024
185.61.152.0/24185.61.152.0–185.61.152.255256
185.61.153.0/24185.61.153.0–185.61.153.255256
185.61.154.0/24185.61.154.0–185.61.154.255256
185.61.155.0/24185.61.155.0–185.61.155.255256
192.64.112.0/24192.64.112.0–192.64.112.255256
192.64.113.0/24192.64.113.0–192.64.113.255256
192.64.114.0/24192.64.114.0–192.64.114.255256
192.64.115.0/24192.64.115.0–192.64.115.255256
192.64.116.0/24192.64.116.0–192.64.116.255256
192.64.117.0/24192.64.117.0–192.64.117.255256
192.64.118.0/24192.64.118.0–192.64.118.255256
192.64.119.0/24192.64.119.0–192.64.119.255256
198.54.112.0/24198.54.112.0–198.54.112.255256
198.54.113.0/24198.54.113.0–198.54.113.255256
198.54.114.0/24198.54.114.0–198.54.114.255256
198.54.115.0/24198.54.115.0–198.54.115.255256
198.54.116.0/24198.54.116.0–198.54.116.255256
198.54.117.0/24198.54.117.0–198.54.117.255256
198.54.118.0/24198.54.118.0–198.54.118.255256
198.54.119.0/24198.54.119.0–198.54.119.255256
198.54.120.0/24198.54.120.0–198.54.120.255256
198.54.121.0/24198.54.121.0–198.54.121.255256
198.54.122.0/24198.54.122.0–198.54.122.255256
198.54.123.0/24198.54.123.0–198.54.123.255256
198.54.124.0/24198.54.124.0–198.54.124.255256
198.54.125.0/24198.54.125.0–198.54.125.255256
198.54.126.0/24198.54.126.0–198.54.126.255256
198.54.127.0/24198.54.127.0–198.54.127.255256
198.177.120.0/24198.177.120.0–198.177.120.255256
198.177.121.0/24198.177.121.0–198.177.121.255256
198.177.122.0/24198.177.122.0–198.177.122.255256
198.177.123.0/24198.177.123.0–198.177.123.255256
198.177.124.0/24198.177.124.0–198.177.124.255256
198.177.125.0/24198.177.125.0–198.177.125.255256
198.177.126.0/24198.177.126.0–198.177.126.255256
198.177.127.0/24198.177.127.0–198.177.127.255256
198.187.28.0/24198.187.28.0–198.187.28.255256
198.187.29.0/24198.187.29.0–198.187.29.255256
198.187.30.0/24198.187.30.0–198.187.30.255256
198.187.31.0/24198.187.31.0–198.187.31.255256
199.85.208.0/24199.85.208.0–199.85.208.255256
199.85.209.0/24199.85.209.0–199.85.209.255256
199.85.210.0/24199.85.210.0–199.85.210.255256
199.85.211.0/24199.85.211.0–199.85.211.255256
199.188.200.0/24199.188.200.0–199.188.200.255256
199.188.201.0/24199.188.201.0–199.188.201.255256
199.188.202.0/24199.188.202.0–199.188.202.255256
199.188.203.0/24199.188.203.0–199.188.203.255256
199.188.204.0/24199.188.204.0–199.188.204.255256
199.188.205.0/24199.188.205.0–199.188.205.255256
199.188.206.0/24199.188.206.0–199.188.206.255256
199.188.207.0/24199.188.207.0–199.188.207.255256
199.192.16.0/24199.192.16.0–199.192.16.255256
199.192.17.0/24199.192.17.0–199.192.17.255256
199.192.18.0/24199.192.18.0–199.192.18.255256
199.192.19.0/24199.192.19.0–199.192.19.255256
199.192.20.0/24199.192.20.0–199.192.20.255256
199.192.21.0/24199.192.21.0–199.192.21.255256
199.192.22.0/24199.192.22.0–199.192.22.255256
199.192.23.0/24199.192.23.0–199.192.23.255256
199.192.24.0/24199.192.24.0–199.192.24.255256
199.192.25.0/24199.192.25.0–199.192.25.255256
199.192.26.0/24199.192.26.0–199.192.26.255256
199.192.27.0/24199.192.27.0–199.192.27.255256
199.192.28.0/24199.192.28.0–199.192.28.255256
199.192.29.0/24199.192.29.0–199.192.29.255256
199.192.30.0/24199.192.30.0–199.192.30.255256
199.192.31.0/24199.192.31.0–199.192.31.255256
199.193.6.0/24199.193.6.0–199.193.6.255256
199.193.7.0/24199.193.7.0–199.193.7.255256
199.201.110.0/24199.201.110.0–199.201.110.255256
203.161.32.0/24203.161.32.0–203.161.32.255256
203.161.33.0/24203.161.33.0–203.161.33.255256
203.161.35.0/24203.161.35.0–203.161.35.255256
203.161.36.0/24203.161.36.0–203.161.36.255256
203.161.37.0/24203.161.37.0–203.161.37.255256
203.161.38.0/24203.161.38.0–203.161.38.255256
203.161.39.0/24203.161.39.0–203.161.39.255256
203.161.40.0/24203.161.40.0–203.161.40.255256
203.161.41.0/24203.161.41.0–203.161.41.255256
203.161.42.0/24203.161.42.0–203.161.42.255256
203.161.43.0/24203.161.43.0–203.161.43.255256
203.161.44.0/24203.161.44.0–203.161.44.255256
203.161.45.0/24203.161.45.0–203.161.45.255256
203.161.46.0/24203.161.46.0–203.161.46.255256
203.161.47.0/24203.161.47.0–203.161.47.255256
203.161.48.0/24203.161.48.0–203.161.48.255256
203.161.49.0/24203.161.49.0–203.161.49.255256
203.161.50.0/24203.161.50.0–203.161.50.255256
203.161.51.0/24203.161.51.0–203.161.51.255256
203.161.52.0/24203.161.52.0–203.161.52.255256
203.161.53.0/24203.161.53.0–203.161.53.255256
203.161.54.0/24203.161.54.0–203.161.54.255256
203.161.55.0/24203.161.55.0–203.161.55.255256
203.161.56.0/24203.161.56.0–203.161.56.255256
203.161.57.0/24203.161.57.0–203.161.57.255256
203.161.58.0/24203.161.58.0–203.161.58.255256
203.161.59.0/24203.161.59.0–203.161.59.255256
203.161.60.0/24203.161.60.0–203.161.60.255256
203.161.61.0/24203.161.61.0–203.161.61.255256
203.161.62.0/24203.161.62.0–203.161.62.255256
203.161.63.0/24203.161.63.0–203.161.63.255256
209.74.64.0/24209.74.64.0–209.74.64.255256
209.74.65.0/24209.74.65.0–209.74.65.255256
209.74.66.0/24209.74.66.0–209.74.66.255256
209.74.67.0/24209.74.67.0–209.74.67.255256
209.74.68.0/24209.74.68.0–209.74.68.255256
209.74.69.0/24209.74.69.0–209.74.69.255256
209.74.70.0/24209.74.70.0–209.74.70.255256
209.74.71.0/24209.74.71.0–209.74.71.255256
209.74.72.0/24209.74.72.0–209.74.72.255256
209.74.73.0/24209.74.73.0–209.74.73.255256
209.74.74.0/24209.74.74.0–209.74.74.255256
209.74.75.0/24209.74.75.0–209.74.75.255256
209.74.76.0/24209.74.76.0–209.74.76.255256
209.74.77.0/24209.74.77.0–209.74.77.255256
209.74.78.0/24209.74.78.0–209.74.78.255256
209.74.79.0/24209.74.79.0–209.74.79.255256
209.74.80.0/24209.74.80.0–209.74.80.255256
209.74.81.0/24209.74.81.0–209.74.81.255256
209.74.82.0/24209.74.82.0–209.74.82.255256
209.74.83.0/24209.74.83.0–209.74.83.255256
209.74.84.0/24209.74.84.0–209.74.84.255256
209.74.85.0/24209.74.85.0–209.74.85.255256
209.74.86.0/24209.74.86.0–209.74.86.255256
209.74.87.0/24209.74.87.0–209.74.87.255256
209.74.88.0/24209.74.88.0–209.74.88.255256
209.74.89.0/24209.74.89.0–209.74.89.255256
209.74.90.0/24209.74.90.0–209.74.90.255256
209.74.91.0/24209.74.91.0–209.74.91.255256
209.74.92.0/24209.74.92.0–209.74.92.255256
209.74.93.0/24209.74.93.0–209.74.93.255256
209.74.94.0/24209.74.94.0–209.74.94.255256
209.74.95.0/24209.74.95.0–209.74.95.255256
209.188.7.128/25209.188.7.128–209.188.7.255128
209.188.18.128/25209.188.18.128–209.188.18.255128
209.188.21.0/24209.188.21.0–209.188.21.255256
209.188.31.0/26209.188.31.0–209.188.31.6364

共 327 筆，已全部列出。

Namecheap 的 IPv6 位址段

Namecheap 宣告的 IPv6 網段：CIDR、起始與結束 IP、位址數
CIDR起始 IP – 結束 IP位址數
2606:5b80::/322606:5b80::–2606:5b80:ffff:ffff:ffff:ffff:ffff:ffff296
2606:5b80:2156::/482606:5b80:2156::–2606:5b80:2156:ffff:ffff:ffff:ffff:ffff280
2606:5b80:ff00::/482606:5b80:ff00::–2606:5b80:ff00:ffff:ffff:ffff:ffff:ffff280
2a02:77e0::/442a02:77e0::–2a02:77e0:f:ffff:ffff:ffff:ffff:ffff284
2a02:77e0:10::/442a02:77e0:10::–2a02:77e0:1f:ffff:ffff:ffff:ffff:ffff284
2a02:77e0:100::/442a02:77e0:100::–2a02:77e0:10f:ffff:ffff:ffff:ffff:ffff284

共 6 筆，已全部列出。

關於 Namecheap 的 IP 網段資料

  • ASN 與持有機構

    Namecheap 使用 AS22612 宣告前綴。註冊資料中的持有機構：AS22612 (NAMECHEAP-NET - Namecheap, Inc.)。

  • 清單包含什麼

    清單是這些 ASN 在公開 BGP 路由表裡宣告的前綴（經 RIPEstat 取得），相鄰的區塊不合併。它不是位址歸屬紀錄：可能包含客戶自帶的前綴與轉租的位址段，也可能漏掉只有很少節點看得到的路由。快照日期 2026-11-02。

  • 常見用途

    在防火牆、WAF 或 nginx 中放行 / 攔截來自 Namecheap 的流量、替日誌裡的來源 IP 分類，或用 CIDR 比對判斷某個 IP 是否屬於 Namecheap。請注意雲端業者與電信業者的位址裡也運行著客戶的業務，整段封鎖可能誤傷無關的服務。

如何使用 Namecheap 的 IP 網段清單

  1. 先看上面的表格：IPv4 與 IPv6 各一張，每列有 CIDR、起始 IP – 結束 IP 與位址數。
  2. 按「下載 TXT」或「下載 CSV」取得完整清單，檔案包含全部 333 筆，不只是頁面上顯示的前幾列。
  3. 把 TXT 當成一個位址集合匯入防火牆、路由器或 ipset，或把 CIDR 貼進雲端安全群組的規則裡。
  4. 用於正式環境前先確認快照日期（2026-11-02）；雲端業者的位址段變動頻繁，請再對照業者自己發布的官方範圍檔案。

Namecheap IP 網段常見問題

Namecheap 有多少個 IP 網段？

截至 2026-11-02，Namecheap 透過 AS22612 在公網 BGP 路由表裡宣告了 327 個 IPv4 前綴（共涵蓋 82,752 個位址）與 6 個 IPv6 前綴。

Namecheap 的 ASN 是多少？

Namecheap 使用 AS22612。註冊資料中的持有機構：AS22612 (NAMECHEAP-NET - Namecheap, Inc.)。大型機構常有多個 ASN，本頁把核對過的都合併在一起。

怎麼用 Namecheap 的 IP 網段做防火牆白名單或黑名單？

下載 TXT 檔案（一行一個 CIDR），匯入 ipset、nftables、nginx 的 allow / deny 設定、路由器位址清單或雲端安全群組。333 筆建議整體當成一個位址集合匯入，不要逐條建立規則。請注意 Namecheap 的位址裡也運行著客戶的服務，整段封鎖會連帶封掉無關的網站。

Namecheap 的 IP 網段清單多久更新一次？

這份清單是 2026-11-02 的快照，大約每週從公開 BGP 資料（RIPEstat）重新產生一次。路由公告每天都在變動，用於正式環境前請重新下載，雲端業者還應對照其官方發布的範圍檔案。

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