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IP ranges

GTT IP ranges

Every IPv4 and IPv6 range that GTT (AS3257) currently announces on the internet, with CIDR and start/end IP, free to download as TXT or CSV. Data snapshot: 2026-11-02.

GTT announces 1,900 IPv4 prefixes covering 8,604,672 addresses, and 79 IPv6 prefixes, through AS3257. The lists below are a snapshot of 2026-11-02 taken from the public BGP routing table, sorted by address and kept as announced.

ASNAS3257
IPv4 prefixes1,900
IPv4 addresses8,604,672Overlaps are counted once
IPv6 prefixes79
Data snapshot

Download the complete list

The complete list has 1,979 ranges (IPv4 and IPv6). TXT has one CIDR per line; CSV has the columns cidr, version, start_ip, end_ip and addresses.

Download TXTDownload CSVIPv4 only (TXT)IPv6 only (TXT)

GTT IPv4 ranges

IPv4 ranges announced by GTT: CIDR, start and end IP, address count
CIDRStart IP – end IPAddresses
2.26.180.0/242.26.180.0–2.26.180.255256
2.26.184.0/242.26.184.0–2.26.184.255256
2.26.220.0/232.26.220.0–2.26.221.255512
2.26.240.0/222.26.240.0–2.26.243.2551,024
2.26.244.0/222.26.244.0–2.26.247.2551,024
2.27.172.0/242.27.172.0–2.27.172.255256
2.27.196.0/222.27.196.0–2.27.199.2551,024
2.27.218.0/232.27.218.0–2.27.219.255512
2.27.220.0/232.27.220.0–2.27.221.255512
2.27.222.0/232.27.222.0–2.27.223.255512
2.27.232.0/242.27.232.0–2.27.232.255256
2.27.235.0/242.27.235.0–2.27.235.255256
2.27.238.0/242.27.238.0–2.27.238.255256
2.27.247.0/242.27.247.0–2.27.247.255256
5.83.96.0/215.83.96.0–5.83.103.2552,048
5.178.16.0/215.178.16.0–5.178.23.2552,048
5.180.4.0/225.180.4.0–5.180.7.2551,024
5.252.77.0/245.252.77.0–5.252.77.255256
5.253.202.0/245.253.202.0–5.253.202.255256
8.19.112.0/248.19.112.0–8.19.112.255256
8.19.203.0/248.19.203.0–8.19.203.255256
8.31.122.0/248.31.122.0–8.31.122.255256
8.35.16.0/218.35.16.0–8.35.23.2552,048
8.35.24.0/218.35.24.0–8.35.31.2552,048
8.35.30.0/248.35.30.0–8.35.30.255256
8.37.186.0/248.37.186.0–8.37.186.255256
13.143.152.0/2113.143.152.0–13.143.159.2552,048
13.143.177.0/2413.143.177.0–13.143.177.255256
16.5.72.0/2116.5.72.0–16.5.79.2552,048
16.5.118.0/2316.5.118.0–16.5.119.255512
16.5.168.0/2316.5.168.0–16.5.169.255512
16.5.170.0/2316.5.170.0–16.5.171.255512
23.26.5.0/2423.26.5.0–23.26.5.255256
23.26.6.0/2423.26.6.0–23.26.6.255256
23.26.7.0/2423.26.7.0–23.26.7.255256
23.26.8.0/2323.26.8.0–23.26.9.255512
23.26.11.0/2423.26.11.0–23.26.11.255256
23.26.12.0/2423.26.12.0–23.26.12.255256
23.26.13.0/2423.26.13.0–23.26.13.255256
23.26.16.0/2223.26.16.0–23.26.19.2551,024
23.26.21.0/2423.26.21.0–23.26.21.255256
23.26.22.0/2423.26.22.0–23.26.22.255256
23.26.198.0/2423.26.198.0–23.26.198.255256
23.27.3.0/2423.27.3.0–23.27.3.255256
23.27.8.0/2423.27.8.0–23.27.8.255256
23.27.30.0/2423.27.30.0–23.27.30.255256
23.27.114.0/2423.27.114.0–23.27.114.255256
23.27.134.0/2423.27.134.0–23.27.134.255256
23.27.216.0/2423.27.216.0–23.27.216.255256
23.27.238.0/2423.27.238.0–23.27.238.255256
23.184.144.0/2423.184.144.0–23.184.144.255256
23.230.1.0/2423.230.1.0–23.230.1.255256
23.230.64.0/2423.230.64.0–23.230.64.255256
23.230.121.0/2423.230.121.0–23.230.121.255256
23.230.186.0/2423.230.186.0–23.230.186.255256
23.230.234.0/2423.230.234.0–23.230.234.255256
23.230.235.0/2423.230.235.0–23.230.235.255256
23.231.111.0/2423.231.111.0–23.231.111.255256
23.231.115.0/2423.231.115.0–23.231.115.255256
23.231.120.0/2423.231.120.0–23.231.120.255256
23.234.128.0/2223.234.128.0–23.234.131.2551,024
23.234.132.0/2223.234.132.0–23.234.135.2551,024
23.234.136.0/2223.234.136.0–23.234.139.2551,024
23.234.140.0/2223.234.140.0–23.234.143.2551,024
23.234.156.0/2223.234.156.0–23.234.159.2551,024
23.252.77.0/2423.252.77.0–23.252.77.255256
23.252.78.0/2423.252.78.0–23.252.78.255256
31.58.131.0/2431.58.131.0–31.58.131.255256
31.58.139.0/2431.58.139.0–31.58.139.255256
31.58.169.0/2431.58.169.0–31.58.169.255256
31.58.221.0/2431.58.221.0–31.58.221.255256
31.58.222.0/2431.58.222.0–31.58.222.255256
31.77.20.0/2231.77.20.0–31.77.23.2551,024
31.77.24.0/2231.77.24.0–31.77.27.2551,024
31.77.215.0/2431.77.215.0–31.77.215.255256
31.77.224.0/2331.77.224.0–31.77.225.255512
31.77.242.0/2331.77.242.0–31.77.243.255512
31.77.250.0/2431.77.250.0–31.77.250.255256
37.1.152.0/2137.1.152.0–37.1.159.2552,048
37.252.30.0/2437.252.30.0–37.252.30.255256
38.244.113.0/2438.244.113.0–38.244.113.255256
38.244.114.0/2438.244.114.0–38.244.114.255256
38.244.115.0/2438.244.115.0–38.244.115.255256
38.244.121.0/2438.244.121.0–38.244.121.255256
38.244.126.0/2438.244.126.0–38.244.126.255256
45.38.206.0/2445.38.206.0–45.38.206.255256
45.38.234.0/2445.38.234.0–45.38.234.255256
45.39.66.0/2445.39.66.0–45.39.66.255256
45.39.77.0/2445.39.77.0–45.39.77.255256
45.39.95.0/2445.39.95.0–45.39.95.255256
45.39.161.0/2445.39.161.0–45.39.161.255256
45.39.174.0/2445.39.174.0–45.39.174.255256
45.41.12.0/2245.41.12.0–45.41.15.2551,024
45.41.60.0/2245.41.60.0–45.41.63.2551,024
45.41.132.0/2245.41.132.0–45.41.135.2551,024
45.41.136.0/2245.41.136.0–45.41.139.2551,024
45.41.144.0/2245.41.144.0–45.41.147.2551,024
45.41.164.0/2245.41.164.0–45.41.167.2551,024
45.41.174.0/2345.41.174.0–45.41.175.255512
45.41.180.0/2345.41.180.0–45.41.181.255512
45.56.128.0/2245.56.128.0–45.56.131.2551,024
45.56.136.0/2345.56.136.0–45.56.137.255512
45.56.140.0/2245.56.140.0–45.56.143.2551,024
45.56.146.0/2445.56.146.0–45.56.146.255256
45.56.148.0/2245.56.148.0–45.56.151.2551,024
45.56.152.0/2145.56.152.0–45.56.159.2552,048
45.56.160.0/2345.56.160.0–45.56.161.255512
45.56.168.0/2245.56.168.0–45.56.171.2551,024
45.56.176.0/2245.56.176.0–45.56.179.2551,024
45.56.180.0/2445.56.180.0–45.56.180.255256
45.56.182.0/2345.56.182.0–45.56.183.255512
45.61.64.0/2245.61.64.0–45.61.67.2551,024
45.61.102.0/2345.61.102.0–45.61.103.255512
45.61.115.0/2445.61.115.0–45.61.115.255256
45.74.224.0/2245.74.224.0–45.74.227.2551,024
45.74.228.0/2245.74.228.0–45.74.231.2551,024
45.74.232.0/2245.74.232.0–45.74.235.2551,024
45.74.236.0/2245.74.236.0–45.74.239.2551,024
45.86.16.0/2245.86.16.0–45.86.19.2551,024
45.136.88.0/2445.136.88.0–45.136.88.255256
45.137.30.0/2445.137.30.0–45.137.30.255256
45.152.20.0/2345.152.20.0–45.152.21.255512
45.170.12.0/2445.170.12.0–45.170.12.255256
45.190.64.0/2245.190.64.0–45.190.67.2551,024
45.199.149.0/2445.199.149.0–45.199.149.255256
45.238.156.0/2245.238.156.0–45.238.159.2551,024
46.19.50.0/2446.19.50.0–46.19.50.255256
46.19.51.0/2446.19.51.0–46.19.51.255256
46.19.52.0/2446.19.52.0–46.19.52.255256
46.19.53.0/2446.19.53.0–46.19.53.255256
46.19.54.0/2446.19.54.0–46.19.54.255256
46.19.55.0/2446.19.55.0–46.19.55.255256
46.33.64.0/1946.33.64.0–46.33.95.2558,192
46.33.76.0/2346.33.76.0–46.33.77.255512
46.34.0.0/1946.34.0.0–46.34.31.2558,192
46.202.54.0/2446.202.54.0–46.202.54.255256
46.202.56.0/2446.202.56.0–46.202.56.255256
50.2.45.0/2450.2.45.0–50.2.45.255256
50.2.170.0/2450.2.170.0–50.2.170.255256
50.2.183.0/2450.2.183.0–50.2.183.255256
50.3.88.0/2350.3.88.0–50.3.89.255512
50.3.117.0/2450.3.117.0–50.3.117.255256
50.3.201.0/2450.3.201.0–50.3.201.255256
50.114.118.0/2450.114.118.0–50.114.118.255256
50.114.122.0/2450.114.122.0–50.114.122.255256
50.114.181.0/2450.114.181.0–50.114.181.255256
50.114.188.0/2450.114.188.0–50.114.188.255256
50.114.232.0/2450.114.232.0–50.114.232.255256
50.114.239.0/2450.114.239.0–50.114.239.255256
52.119.96.0/2452.119.96.0–52.119.96.255256
62.3.61.0/2462.3.61.0–62.3.61.255256
62.41.0.0/2062.41.0.0–62.41.15.2554,096
62.41.16.0/2162.41.16.0–62.41.23.2552,048
62.41.24.0/2262.41.24.0–62.41.27.2551,024
62.41.56.0/2162.41.56.0–62.41.63.2552,048
62.41.64.0/2062.41.64.0–62.41.79.2554,096
62.41.80.0/2262.41.80.0–62.41.83.2551,024
62.41.84.0/2362.41.84.0–62.41.85.255512
62.41.102.0/2462.41.102.0–62.41.102.255256
62.41.160.0/2462.41.160.0–62.41.160.255256
62.50.0.0/1962.50.0.0–62.50.31.2558,192
62.50.1.0/2462.50.1.0–62.50.1.255256
62.50.32.0/1962.50.32.0–62.50.63.2558,192
62.50.64.0/1962.50.64.0–62.50.95.2558,192
62.50.77.0/2462.50.77.0–62.50.77.255256
62.50.84.0/2462.50.84.0–62.50.84.255256
62.50.85.0/2462.50.85.0–62.50.85.255256
62.50.128.0/1962.50.128.0–62.50.159.2558,192
62.93.160.0/1962.93.160.0–62.93.191.2558,192
62.105.192.0/1862.105.192.0–62.105.255.25516,384
62.132.0.0/2262.132.0.0–62.132.3.2551,024
62.132.16.0/2262.132.16.0–62.132.19.2551,024
62.132.24.0/2362.132.24.0–62.132.25.255512
62.132.28.0/2462.132.28.0–62.132.28.255256
62.132.42.0/2362.132.42.0–62.132.43.255512
62.132.114.0/2362.132.114.0–62.132.115.255512
62.132.116.0/2362.132.116.0–62.132.117.255512
62.192.96.0/1962.192.96.0–62.192.127.2558,192
62.217.0.0/1962.217.0.0–62.217.31.2558,192
62.217.3.0/2462.217.3.0–62.217.3.255256
62.217.6.0/2462.217.6.0–62.217.6.255256
63.133.128.0/1863.133.128.0–63.133.191.25516,384
63.133.192.0/2063.133.192.0–63.133.207.2554,096
63.141.192.0/1963.141.192.0–63.141.223.2558,192
63.208.76.0/2463.208.76.0–63.208.76.255256
63.208.77.0/2463.208.77.0–63.208.77.255256
63.208.78.0/2463.208.78.0–63.208.78.255256
63.208.79.0/2463.208.79.0–63.208.79.255256
63.210.98.0/2463.210.98.0–63.210.98.255256
63.210.99.0/2463.210.99.0–63.210.99.255256
63.215.126.0/2463.215.126.0–63.215.126.255256
63.239.116.0/2363.239.116.0–63.239.117.255512
63.250.96.0/1963.250.96.0–63.250.127.2558,192
64.6.160.0/1964.6.160.0–64.6.191.2558,192
64.7.0.0/1964.7.0.0–64.7.31.2558,192
64.8.192.0/1864.8.192.0–64.8.255.25516,384
64.20.0.0/2064.20.0.0–64.20.15.2554,096
64.32.128.0/1764.32.128.0–64.32.255.25532,768
64.32.144.0/2464.32.144.0–64.32.144.255256
64.32.145.0/2464.32.145.0–64.32.145.255256
64.32.146.0/2464.32.146.0–64.32.146.255256
64.32.147.0/2464.32.147.0–64.32.147.255256
64.32.150.0/2464.32.150.0–64.32.150.255256
64.32.151.0/2464.32.151.0–64.32.151.255256
64.32.164.0/2464.32.164.0–64.32.164.255256
64.32.165.0/2464.32.165.0–64.32.165.255256
64.32.166.0/2464.32.166.0–64.32.166.255256
64.32.167.0/2464.32.167.0–64.32.167.255256
64.32.176.0/2464.32.176.0–64.32.176.255256
64.32.177.0/2464.32.177.0–64.32.177.255256
64.32.188.0/2464.32.188.0–64.32.188.255256
64.32.189.0/2464.32.189.0–64.32.189.255256
64.49.14.0/2464.49.14.0–64.49.14.255256
64.50.128.0/2064.50.128.0–64.50.143.2554,096
64.50.128.0/2164.50.128.0–64.50.135.2552,048
64.50.192.0/1964.50.192.0–64.50.223.2558,192
64.51.0.0/1664.51.0.0–64.51.255.25565,536
64.51.20.0/2264.51.20.0–64.51.23.2551,024
64.51.24.0/2264.51.24.0–64.51.27.2551,024
64.51.36.0/2264.51.36.0–64.51.39.2551,024
64.51.44.0/2264.51.44.0–64.51.47.2551,024
64.57.129.0/2464.57.129.0–64.57.129.255256
64.57.130.0/2364.57.130.0–64.57.131.255512
64.57.132.0/2264.57.132.0–64.57.135.2551,024
64.74.175.0/2464.74.175.0–64.74.175.255256
64.81.0.0/1664.81.0.0–64.81.255.25565,536
64.81.16.0/2264.81.16.0–64.81.19.2551,024
64.81.20.0/2464.81.20.0–64.81.20.255256
64.81.24.0/2164.81.24.0–64.81.31.2552,048
64.81.32.0/2164.81.32.0–64.81.39.2552,048
64.81.40.0/2264.81.40.0–64.81.43.2551,024
64.81.46.0/2364.81.46.0–64.81.47.255512
64.81.64.0/2164.81.64.0–64.81.71.2552,048
64.81.76.0/2364.81.76.0–64.81.77.255512
64.81.78.0/2464.81.78.0–64.81.78.255256
64.81.112.0/2164.81.112.0–64.81.119.2552,048
64.81.120.0/2264.81.120.0–64.81.123.2551,024
64.81.124.0/2364.81.124.0–64.81.125.255512
64.81.126.0/2464.81.126.0–64.81.126.255256
64.81.128.0/2064.81.128.0–64.81.143.2554,096
64.81.144.0/2164.81.144.0–64.81.151.2552,048
64.81.152.0/2264.81.152.0–64.81.155.2551,024
64.81.156.0/2364.81.156.0–64.81.157.255512
64.81.158.0/2464.81.158.0–64.81.158.255256
64.81.161.0/2464.81.161.0–64.81.161.255256
64.81.163.0/2464.81.163.0–64.81.163.255256
64.81.165.0/2464.81.165.0–64.81.165.255256
64.81.166.0/2364.81.166.0–64.81.167.255512
64.81.169.0/2464.81.169.0–64.81.169.255256
64.81.186.0/2464.81.186.0–64.81.186.255256
64.93.0.0/1864.93.0.0–64.93.63.25516,384
64.93.10.0/2464.93.10.0–64.93.10.255256
64.93.16.0/2464.93.16.0–64.93.16.255256
64.93.52.0/2264.93.52.0–64.93.55.2551,024
64.93.56.0/2264.93.56.0–64.93.59.2551,024
64.105.0.0/1664.105.0.0–64.105.255.25565,536
64.105.0.0/2264.105.0.0–64.105.3.2551,024
64.105.8.0/2264.105.8.0–64.105.11.2551,024
64.105.16.0/2264.105.16.0–64.105.19.2551,024
64.105.20.0/2364.105.20.0–64.105.21.255512
64.105.23.0/2464.105.23.0–64.105.23.255256
64.105.24.0/2164.105.24.0–64.105.31.2552,048
64.105.32.0/2164.105.32.0–64.105.39.2552,048
64.105.40.0/2364.105.40.0–64.105.41.255512
64.105.42.0/2464.105.42.0–64.105.42.255256
64.105.48.0/2364.105.48.0–64.105.49.255512
64.105.50.0/2464.105.50.0–64.105.50.255256
64.105.52.0/2364.105.52.0–64.105.53.255512
64.105.54.0/2364.105.54.0–64.105.55.255512
64.105.56.0/2164.105.56.0–64.105.63.2552,048
64.130.240.0/2064.130.240.0–64.130.255.2554,096
64.139.0.0/1864.139.0.0–64.139.63.25516,384
64.144.0.0/1664.144.0.0–64.144.255.25565,536
64.145.0.0/1864.145.0.0–64.145.63.25516,384
64.145.96.0/1964.145.96.0–64.145.127.2558,192
64.145.128.0/1764.145.128.0–64.145.255.25532,768
64.186.224.0/1964.186.224.0–64.186.255.2558,192
64.204.0.0/1564.204.0.0–64.205.255.255131,072
64.205.184.0/2264.205.184.0–64.205.187.2551,024
64.205.193.0/2464.205.193.0–64.205.193.255256
64.205.194.0/2364.205.194.0–64.205.195.255512
64.205.196.0/2264.205.196.0–64.205.199.2551,024
64.205.208.0/2264.205.208.0–64.205.211.2551,024
64.235.224.0/1964.235.224.0–64.235.255.2558,192
64.248.0.0/1564.248.0.0–64.249.255.255131,072
65.84.0.0/1565.84.0.0–65.85.255.255131,072
65.86.0.0/1665.86.0.0–65.86.255.25565,536
65.86.56.0/2265.86.56.0–65.86.59.2551,024
65.86.88.0/2465.86.88.0–65.86.88.255256
65.86.89.0/2465.86.89.0–65.86.89.255256
65.86.90.0/2465.86.90.0–65.86.90.255256
65.86.91.0/2465.86.91.0–65.86.91.255256
65.86.92.0/2365.86.92.0–65.86.93.255512
65.86.94.0/2465.86.94.0–65.86.94.255256
65.86.95.0/2465.86.95.0–65.86.95.255256
65.111.64.0/1965.111.64.0–65.111.95.2558,192
65.175.0.0/1865.175.0.0–65.175.63.25516,384
65.175.51.0/2465.175.51.0–65.175.51.255256
66.7.128.0/1866.7.128.0–66.7.191.25516,384
66.7.143.208/2966.7.143.208–66.7.143.2158
66.17.64.0/2166.17.64.0–66.17.71.2552,048
66.17.80.0/2066.17.80.0–66.17.95.2554,096
66.17.128.0/1766.17.128.0–66.17.255.25532,768
66.54.128.0/1766.54.128.0–66.54.255.25532,768
66.80.0.0/1666.80.0.0–66.80.255.25565,536
66.80.120.0/2466.80.120.0–66.80.120.255256
66.80.124.0/2466.80.124.0–66.80.124.255256
66.80.126.0/2466.80.126.0–66.80.126.255256
66.80.127.0/2466.80.127.0–66.80.127.255256
66.80.129.0/2466.80.129.0–66.80.129.255256
66.80.132.0/2466.80.132.0–66.80.132.255256
66.80.133.0/2466.80.133.0–66.80.133.255256
66.80.134.0/2466.80.134.0–66.80.134.255256
66.80.169.0/2466.80.169.0–66.80.169.255256
66.80.170.0/2466.80.170.0–66.80.170.255256
66.80.171.0/2466.80.171.0–66.80.171.255256
66.80.172.0/2266.80.172.0–66.80.175.2551,024
66.92.0.0/1566.92.0.0–66.93.255.255131,072
66.92.6.0/2366.92.6.0–66.92.7.255512
66.92.26.0/2366.92.26.0–66.92.27.255512
66.92.32.0/2366.92.32.0–66.92.33.255512
66.92.34.0/2466.92.34.0–66.92.34.255256
66.92.40.0/2266.92.40.0–66.92.43.2551,024
66.92.44.0/2366.92.44.0–66.92.45.255512
66.92.47.0/2466.92.47.0–66.92.47.255256
66.92.48.0/2366.92.48.0–66.92.49.255512
66.92.51.0/2466.92.51.0–66.92.51.255256
66.92.52.0/2466.92.52.0–66.92.52.255256
66.92.53.0/2466.92.53.0–66.92.53.255256
66.92.56.0/2366.92.56.0–66.92.57.255512
66.92.63.0/2466.92.63.0–66.92.63.255256
66.92.65.0/2466.92.65.0–66.92.65.255256
66.92.66.0/2366.92.66.0–66.92.67.255512
66.92.158.0/2466.92.158.0–66.92.158.255256
66.92.162.0/2466.92.162.0–66.92.162.255256
66.92.166.0/2366.92.166.0–66.92.167.255512
66.92.169.0/2466.92.169.0–66.92.169.255256
66.92.177.0/2466.92.177.0–66.92.177.255256
66.92.179.0/2466.92.179.0–66.92.179.255256
66.92.182.0/2466.92.182.0–66.92.182.255256
66.92.188.0/2366.92.188.0–66.92.189.255512
66.92.190.0/2466.92.190.0–66.92.190.255256
66.92.192.0/2466.92.192.0–66.92.192.255256
66.92.201.0/2466.92.201.0–66.92.201.255256
66.92.215.0/2466.92.215.0–66.92.215.255256
66.92.221.0/2466.92.221.0–66.92.221.255256
66.92.222.0/2466.92.222.0–66.92.222.255256
66.92.225.0/2466.92.225.0–66.92.225.255256
66.92.226.0/2466.92.226.0–66.92.226.255256
66.92.227.0/2466.92.227.0–66.92.227.255256
66.92.228.0/2466.92.228.0–66.92.228.255256
66.92.229.0/2466.92.229.0–66.92.229.255256
66.92.230.0/2466.92.230.0–66.92.230.255256
66.92.231.0/2466.92.231.0–66.92.231.255256
66.92.244.0/2466.92.244.0–66.92.244.255256
66.92.248.0/2466.92.248.0–66.92.248.255256
66.92.252.0/2466.92.252.0–66.92.252.255256
66.92.254.0/2466.92.254.0–66.92.254.255256
66.93.16.0/2366.93.16.0–66.93.17.255512
66.93.26.0/2366.93.26.0–66.93.27.255512
66.93.54.0/2366.93.54.0–66.93.55.255512
66.93.67.0/2466.93.67.0–66.93.67.255256
66.93.70.0/2466.93.70.0–66.93.70.255256
66.93.73.0/2466.93.73.0–66.93.73.255256
66.93.77.0/2466.93.77.0–66.93.77.255256
66.93.84.0/2466.93.84.0–66.93.84.255256
66.93.85.0/2466.93.85.0–66.93.85.255256
66.93.86.0/2466.93.86.0–66.93.86.255256
66.93.144.0/2366.93.144.0–66.93.145.255512
66.93.148.0/2366.93.148.0–66.93.149.255512
66.93.152.0/2366.93.152.0–66.93.153.255512
66.93.240.0/2466.93.240.0–66.93.240.255256
66.93.241.0/2466.93.241.0–66.93.241.255256
66.93.242.0/2466.93.242.0–66.93.242.255256
66.93.243.0/2466.93.243.0–66.93.243.255256
66.93.244.0/2466.93.244.0–66.93.244.255256
66.93.245.0/2466.93.245.0–66.93.245.255256
66.95.0.0/1666.95.0.0–66.95.255.25565,536
66.95.192.0/2366.95.192.0–66.95.193.255512
66.134.0.0/1666.134.0.0–66.134.255.25565,536
66.134.66.0/2366.134.66.0–66.134.67.255512
66.134.74.0/2466.134.74.0–66.134.74.255256
66.134.88.0/2366.134.88.0–66.134.89.255512
66.134.92.0/2366.134.92.0–66.134.93.255512
66.166.0.0/1566.166.0.0–66.167.255.255131,072
66.167.6.0/2366.167.6.0–66.167.7.255512
66.167.15.0/2466.167.15.0–66.167.15.255256
66.167.80.0/2366.167.80.0–66.167.81.255512
66.167.90.0/2466.167.90.0–66.167.90.255256
66.167.147.0/2466.167.147.0–66.167.147.255256
66.167.166.0/2466.167.166.0–66.167.166.255256
66.167.169.0/2466.167.169.0–66.167.169.255256
66.167.202.0/2366.167.202.0–66.167.203.255512
66.167.206.0/2366.167.206.0–66.167.207.255512
66.171.224.0/2066.171.224.0–66.171.239.2554,096
66.200.0.0/1666.200.0.0–66.200.255.25565,536
66.209.207.0/2466.209.207.0–66.209.207.255256
66.225.230.0/2466.225.230.0–66.225.230.255256
66.226.192.0/1866.226.192.0–66.226.255.25516,384
66.227.0.0/1766.227.0.0–66.227.127.25532,768
66.227.119.0/2466.227.119.0–66.227.119.255256
66.234.224.0/1966.234.224.0–66.234.255.2558,192
66.253.0.0/1766.253.0.0–66.253.127.25532,768
66.253.0.0/2466.253.0.0–66.253.0.255256
66.253.1.0/2466.253.1.0–66.253.1.255256
66.253.2.0/2466.253.2.0–66.253.2.255256
66.253.4.0/2466.253.4.0–66.253.4.255256
66.253.5.0/2466.253.5.0–66.253.5.255256
66.253.7.0/2466.253.7.0–66.253.7.255256
66.253.39.0/2466.253.39.0–66.253.39.255256
67.100.0.0/1467.100.0.0–67.103.255.255262,144
67.102.7.0/2467.102.7.0–67.102.7.255256
67.102.189.0/2467.102.189.0–67.102.189.255256
67.102.242.0/2467.102.242.0–67.102.242.255256
67.199.128.0/1967.199.128.0–67.199.159.2558,192
67.200.0.0/1767.200.0.0–67.200.127.25532,768
67.201.0.0/1867.201.0.0–67.201.63.25516,384
67.201.43.0/2467.201.43.0–67.201.43.255256
67.211.112.0/2067.211.112.0–67.211.127.2554,096
67.220.128.0/1967.220.128.0–67.220.159.2558,192
67.223.223.0/2467.223.223.0–67.223.223.255256
68.64.128.0/1868.64.128.0–68.64.191.25516,384
68.64.133.0/2468.64.133.0–68.64.133.255256
68.64.155.0/2468.64.155.0–68.64.155.255256
68.68.96.0/2468.68.96.0–68.68.96.255256
68.68.107.0/2468.68.107.0–68.68.107.255256
68.68.108.0/2468.68.108.0–68.68.108.255256
68.69.188.0/2268.69.188.0–68.69.191.2551,024
68.164.0.0/1468.164.0.0–68.167.255.255262,144
68.165.96.0/2368.165.96.0–68.165.97.255512
68.165.100.0/2368.165.100.0–68.165.101.255512
68.165.108.0/2268.165.108.0–68.165.111.2551,024
68.165.144.0/2368.165.144.0–68.165.145.255512
68.165.146.0/2368.165.146.0–68.165.147.255512
68.165.148.0/2468.165.148.0–68.165.148.255256
68.165.149.0/2468.165.149.0–68.165.149.255256
68.165.150.0/2468.165.150.0–68.165.150.255256
68.165.151.0/2468.165.151.0–68.165.151.255256
68.165.156.0/2368.165.156.0–68.165.157.255512
68.165.158.0/2368.165.158.0–68.165.159.255512
68.165.224.0/2168.165.224.0–68.165.231.2552,048
68.165.248.0/2168.165.248.0–68.165.255.2552,048
68.166.160.0/2468.166.160.0–68.166.160.255256
68.166.161.0/2468.166.161.0–68.166.161.255256
68.166.184.0/2268.166.184.0–68.166.187.2551,024
68.167.138.0/2368.167.138.0–68.167.139.255512
68.167.152.0/2368.167.152.0–68.167.153.255512
68.167.255.0/2468.167.255.0–68.167.255.255256
68.232.64.0/2068.232.64.0–68.232.79.2554,096
69.3.0.0/1669.3.0.0–69.3.255.25565,536
69.3.136.0/2269.3.136.0–69.3.139.2551,024
69.12.0.0/2469.12.0.0–69.12.0.255256
69.12.10.0/2469.12.10.0–69.12.10.255256
69.12.37.0/2469.12.37.0–69.12.37.255256
69.12.39.0/2469.12.39.0–69.12.39.255256
69.12.40.0/2469.12.40.0–69.12.40.255256
69.12.54.0/2469.12.54.0–69.12.54.255256
69.12.105.0/2469.12.105.0–69.12.105.255256
69.17.0.0/1769.17.0.0–69.17.127.25532,768
69.17.1.0/2469.17.1.0–69.17.1.255256
69.17.65.0/2469.17.65.0–69.17.65.255256
69.17.66.0/2469.17.66.0–69.17.66.255256
69.17.68.0/2469.17.68.0–69.17.68.255256
69.17.96.0/2469.17.96.0–69.17.96.255256
69.17.108.0/2369.17.108.0–69.17.109.255512
69.17.110.0/2469.17.110.0–69.17.110.255256
69.17.111.0/2469.17.111.0–69.17.111.255256
69.22.128.0/1869.22.128.0–69.22.191.25516,384
69.26.192.0/1869.26.192.0–69.26.255.25516,384
69.26.208.0/2069.26.208.0–69.26.223.2554,096
69.26.240.0/2169.26.240.0–69.26.247.2552,048
69.31.0.0/1769.31.0.0–69.31.127.25532,768
69.31.24.0/2469.31.24.0–69.31.24.255256
69.31.128.0/2069.31.128.0–69.31.143.2554,096
69.33.0.0/1669.33.0.0–69.33.255.25565,536
69.33.226.0/2469.33.226.0–69.33.226.255256
69.43.240.0/2069.43.240.0–69.43.255.2554,096
69.50.92.0/2269.50.92.0–69.50.95.2551,024
69.63.192.0/1969.63.192.0–69.63.223.2558,192
69.167.64.0/1869.167.64.0–69.167.127.25516,384
69.174.0.0/1769.174.0.0–69.174.127.25532,768
69.174.24.0/2469.174.24.0–69.174.24.255256
69.174.25.0/2469.174.25.0–69.174.25.255256
69.174.32.0/2469.174.32.0–69.174.32.255256
69.174.33.0/2469.174.33.0–69.174.33.255256
69.174.39.0/2469.174.39.0–69.174.39.255256
69.174.54.0/2469.174.54.0–69.174.54.255256
69.174.58.0/2469.174.58.0–69.174.58.255256
69.174.85.0/2469.174.85.0–69.174.85.255256
69.174.90.0/2469.174.90.0–69.174.90.255256
69.174.117.0/2469.174.117.0–69.174.117.255256
69.174.121.0/2469.174.121.0–69.174.121.255256
70.39.128.0/1770.39.128.0–70.39.255.25532,768
70.39.154.0/2470.39.154.0–70.39.154.255256
70.39.156.0/2470.39.156.0–70.39.156.255256
70.39.170.0/2470.39.170.0–70.39.170.255256
70.39.176.0/2170.39.176.0–70.39.183.2552,048
70.39.191.0/2470.39.191.0–70.39.191.255256
70.39.192.0/2170.39.192.0–70.39.199.2552,048
70.39.200.0/2170.39.200.0–70.39.207.2552,048

Showing the first 500 of 1,900 ranges. Download the TXT or CSV file for the complete list.

GTT IPv6 ranges

IPv6 ranges announced by GTT: CIDR, start and end IP, address count
CIDRStart IP – end IPAddresses
2001:590::/322001:590::–2001:590:ffff:ffff:ffff:ffff:ffff:ffff296
2001:590:3400::/382001:590:3400::–2001:590:37ff:ffff:ffff:ffff:ffff:ffff290
2001:668::/292001:668::–2001:66f:ffff:ffff:ffff:ffff:ffff:ffff299
2001:668::/322001:668::–2001:668:ffff:ffff:ffff:ffff:ffff:ffff296
2001:668:1f:fc23::/642001:668:1f:fc23::–2001:668:1f:fc23:ffff:ffff:ffff:ffff264
2001:668:1f:fc31::/642001:668:1f:fc31::–2001:668:1f:fc31:ffff:ffff:ffff:ffff264
2001:668:1f:fc32::/642001:668:1f:fc32::–2001:668:1f:fc32:ffff:ffff:ffff:ffff264
2001:668:1f:fc33::/642001:668:1f:fc33::–2001:668:1f:fc33:ffff:ffff:ffff:ffff264
2001:668:1f:fd24::/642001:668:1f:fd24::–2001:668:1f:fd24:ffff:ffff:ffff:ffff264
2001:668:1f:ff77::/642001:668:1f:ff77::–2001:668:1f:ff77:ffff:ffff:ffff:ffff264
2001:668:1f:ff80::/642001:668:1f:ff80::–2001:668:1f:ff80:ffff:ffff:ffff:ffff264
2001:668:126::/482001:668:126::–2001:668:126:ffff:ffff:ffff:ffff:ffff280
2001:668:128::/502001:668:128::–2001:668:128:3fff:ffff:ffff:ffff:ffff278
2001:668:128:4000::/502001:668:128:4000::–2001:668:128:7fff:ffff:ffff:ffff:ffff278
2001:668:128:8000::/502001:668:128:8000::–2001:668:128:bfff:ffff:ffff:ffff:ffff278
2001:668:128:c000::/502001:668:128:c000::–2001:668:128:ffff:ffff:ffff:ffff:ffff278
2001:668:130::/482001:668:130::–2001:668:130:ffff:ffff:ffff:ffff:ffff280
2001:67c:1514::/482001:67c:1514::–2001:67c:1514:ffff:ffff:ffff:ffff:ffff280
2001:680::/322001:680::–2001:680:ffff:ffff:ffff:ffff:ffff:ffff296
2001:680:16::/482001:680:16::–2001:680:16:ffff:ffff:ffff:ffff:ffff280
2001:6f8::/322001:6f8::–2001:6f8:ffff:ffff:ffff:ffff:ffff:ffff296
2001:6f8:200::/392001:6f8:200::–2001:6f8:3ff:ffff:ffff:ffff:ffff:ffff289
2001:6f8:206::/482001:6f8:206::–2001:6f8:206:ffff:ffff:ffff:ffff:ffff280
2001:6f8:1800::/392001:6f8:1800::–2001:6f8:19ff:ffff:ffff:ffff:ffff:ffff289
2001:6f8:1903::/482001:6f8:1903::–2001:6f8:1903:ffff:ffff:ffff:ffff:ffff280
2001:aa0::/322001:aa0::–2001:aa0:ffff:ffff:ffff:ffff:ffff:ffff296
2001:aa0:7000::/362001:aa0:7000::–2001:aa0:7fff:ffff:ffff:ffff:ffff:ffff292
2001:1478::/322001:1478::–2001:1478:ffff:ffff:ffff:ffff:ffff:ffff296
2001:1478:201::/482001:1478:201::–2001:1478:201:ffff:ffff:ffff:ffff:ffff280
2001:1478:700::/482001:1478:700::–2001:1478:700:ffff:ffff:ffff:ffff:ffff280
2001:1478:1801::/482001:1478:1801::–2001:1478:1801:ffff:ffff:ffff:ffff:ffff280
2001:4890::/322001:4890::–2001:4890:ffff:ffff:ffff:ffff:ffff:ffff296
2400:f780::/322400:f780::–2400:f780:ffff:ffff:ffff:ffff:ffff:ffff296
2405:5e00::/322405:5e00::–2405:5e00:ffff:ffff:ffff:ffff:ffff:ffff296
2600:1407:1c::/482600:1407:1c::–2600:1407:1c:ffff:ffff:ffff:ffff:ffff280
2602:ffb7:590::/462602:ffb7:590::–2602:ffb7:593:ffff:ffff:ffff:ffff:ffff282
2604:cf80::/322604:cf80::–2604:cf80:ffff:ffff:ffff:ffff:ffff:ffff296
2605:d480::/322605:d480::–2605:d480:ffff:ffff:ffff:ffff:ffff:ffff296
2606:6200::/322606:6200::–2606:6200:ffff:ffff:ffff:ffff:ffff:ffff296
2607:f588::/322607:f588::–2607:f588:ffff:ffff:ffff:ffff:ffff:ffff296
2610:38::/322610:38::–2610:38:ffff:ffff:ffff:ffff:ffff:ffff296
2620:131:2024::/482620:131:2024::–2620:131:2024:ffff:ffff:ffff:ffff:ffff280
2620:135:7003::/482620:135:7003::–2620:135:7003:ffff:ffff:ffff:ffff:ffff280
2a00:16c8::/322a00:16c8::–2a00:16c8:ffff:ffff:ffff:ffff:ffff:ffff296
2a00:16c8:10b::/482a00:16c8:10b::–2a00:16c8:10b:ffff:ffff:ffff:ffff:ffff280
2a00:16c8:10c::/482a00:16c8:10c::–2a00:16c8:10c:ffff:ffff:ffff:ffff:ffff280
2a00:1750::/322a00:1750::–2a00:1750:ffff:ffff:ffff:ffff:ffff:ffff296
2a00:43c0::/322a00:43c0::–2a00:43c0:ffff:ffff:ffff:ffff:ffff:ffff296
2a00:4b00:171::/482a00:4b00:171::–2a00:4b00:171:ffff:ffff:ffff:ffff:ffff280
2a00:7580:16::/482a00:7580:16::–2a00:7580:16:ffff:ffff:ffff:ffff:ffff280
2a00:80c0::/322a00:80c0::–2a00:80c0:ffff:ffff:ffff:ffff:ffff:ffff296
2a00:8d00::/322a00:8d00::–2a00:8d00:ffff:ffff:ffff:ffff:ffff:ffff296
2a00:bb40::/322a00:bb40::–2a00:bb40:ffff:ffff:ffff:ffff:ffff:ffff296
2a02:9e8::/322a02:9e8::–2a02:9e8:ffff:ffff:ffff:ffff:ffff:ffff296
2a02:d28::/322a02:d28::–2a02:d28:ffff:ffff:ffff:ffff:ffff:ffff296
2a02:6280::/322a02:6280::–2a02:6280:ffff:ffff:ffff:ffff:ffff:ffff296
2a04:e00:2::/482a04:e00:2::–2a04:e00:2:ffff:ffff:ffff:ffff:ffff280
2a04:1120::/302a04:1120::–2a04:1123:ffff:ffff:ffff:ffff:ffff:ffff298
2a04:6640::/292a04:6640::–2a04:6647:ffff:ffff:ffff:ffff:ffff:ffff299
2a04:a3c7::/322a04:a3c7::–2a04:a3c7:ffff:ffff:ffff:ffff:ffff:ffff296
2a05:18c0::/292a05:18c0::–2a05:18c7:ffff:ffff:ffff:ffff:ffff:ffff299
2a05:a882:de10::/482a05:a882:de10::–2a05:a882:de10:ffff:ffff:ffff:ffff:ffff280
2a06:1180:12bb::/482a06:1180:12bb::–2a06:1180:12bb:ffff:ffff:ffff:ffff:ffff280
2a06:2b81::/322a06:2b81::–2a06:2b81:ffff:ffff:ffff:ffff:ffff:ffff296
2a0a:2d04:9825::/482a0a:2d04:9825::–2a0a:2d04:9825:ffff:ffff:ffff:ffff:ffff280
2a0a:6041::/322a0a:6041::–2a0a:6041:ffff:ffff:ffff:ffff:ffff:ffff296
2a0c:7881:98dd::/482a0c:7881:98dd::–2a0c:7881:98dd:ffff:ffff:ffff:ffff:ffff280
2a0c:8640::/302a0c:8640::–2a0c:8643:ffff:ffff:ffff:ffff:ffff:ffff298
2a0d:d901::/322a0d:d901::–2a0d:d901:ffff:ffff:ffff:ffff:ffff:ffff296
2a0e:15c0:1213::/482a0e:15c0:1213::–2a0e:15c0:1213:ffff:ffff:ffff:ffff:ffff280
2a0f:7d00:32ba::/482a0f:7d00:32ba::–2a0f:7d00:32ba:ffff:ffff:ffff:ffff:ffff280
2a0f:b242::/322a0f:b242::–2a0f:b242:ffff:ffff:ffff:ffff:ffff:ffff296
2a0f:b243::/322a0f:b243::–2a0f:b243:ffff:ffff:ffff:ffff:ffff:ffff296
2a0f:b247::/322a0f:b247::–2a0f:b247:ffff:ffff:ffff:ffff:ffff:ffff296
2a13:fc00::/292a13:fc00::–2a13:fc07:ffff:ffff:ffff:ffff:ffff:ffff299
2a14:4340::/292a14:4340::–2a14:4347:ffff:ffff:ffff:ffff:ffff:ffff299
2a14:4b00::/292a14:4b00::–2a14:4b07:ffff:ffff:ffff:ffff:ffff:ffff299
2a14:5200::/292a14:5200::–2a14:5207:ffff:ffff:ffff:ffff:ffff:ffff299
2a14:d281::/322a14:d281::–2a14:d281:ffff:ffff:ffff:ffff:ffff:ffff296

All 79 ranges are listed.

About the GTT IP range data

  • ASNs and holders

    GTT announces its prefixes from AS3257. Holders in the registry: AS3257 (GTT-BACKBONE GTT Communications Inc.).

  • What the list contains

    The ranges are the prefixes these ASNs announce in the public BGP routing table (obtained through RIPEstat), with adjacent blocks left unmerged. This is not an ownership record: it can include prefixes of customers and leased address space, and it can miss routes that very few peers see. Snapshot of 2026-11-02.

  • Typical uses

    Allow or block traffic from GTT in a firewall, WAF or nginx, label source IPs in your logs by network, or test with a CIDR match whether an IP belongs to GTT. Remember that cloud and carrier address space also runs the services of customers, so blocking a whole network can hit unrelated sites.

How to use the GTT IP list

  1. Start with the tables above: one for IPv4 and one for IPv6, each row with CIDR, start IP – end IP and address count.
  2. Choose Download TXT or Download CSV for the complete list. The file has all 1,979 ranges, not only the first rows shown on the page.
  3. Import the TXT as one address set into your firewall, router or ipset, or paste the CIDRs into a cloud security group rule.
  4. Check the snapshot date (2026-11-02) before using it in production. Cloud ranges change often, so compare with the official range file published by the provider.

GTT IP ranges: frequently asked questions

How many IP ranges does GTT have?

As of 2026-11-02, GTT announces 1,900 IPv4 prefixes covering 8,604,672 addresses and 79 IPv6 prefixes in the public BGP routing table, through AS3257.

What is the ASN of GTT?

GTT uses AS3257. Holders in the registry: AS3257 (GTT-BACKBONE GTT Communications Inc.). Large organisations often run several ASNs, and this page merges the ones listed here.

How do I use the GTT IP list for a firewall allowlist or blocklist?

Download the TXT file (one CIDR per line) and import it into ipset, nftables, an nginx allow or deny include, a router address list or a cloud security group. Import the 1,979 ranges as one address set rather than as separate rules. The address space of GTT also hosts the services of its customers, so blocking all of it can cut off unrelated sites.

How often is the GTT IP list updated?

The list is a snapshot of 2026-11-02, regenerated about once a week from public BGP data (RIPEstat). Announcements change every day, so download it again before using it in production, and for cloud providers also compare it with the official range file they publish.

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