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Autonomous system

AS2856

Autonomous System
Autonomous System Number (ASN)
AS2856
Country
United Kingdom of Great Britain and Northern Ireland (GB)
Organization
British Telecommunications Limited
Handle
BT-UK-AS
Names and aliases
BTnet (BT's UK IP Network, British Telecommunications
Websites
http://www.bt.net
Category
isp
Network Role
major_transit
Number of IPv4
13,933,824
Number of IPv6
1.0775 x 10^31
IPv4 Prefixes

Showing up to 100 prefixes per page.

Prefix Address Count First Address Last Address
5.35.192.0/21 2,048 5.35.192.0 5.35.199.255
5.80.0.0/15 131,072 5.80.0.0 5.81.255.255
5.181.136.0/24 256 5.181.136.0 5.181.136.255
9.151.0.0/19 8,192 9.151.0.0 9.151.31.255
9.151.208.0/20 4,096 9.151.208.0 9.151.223.255
9.151.248.0/21 2,048 9.151.248.0 9.151.255.255
9.232.192.0/18 16,384 9.232.192.0 9.232.255.255
9.233.48.0/20 4,096 9.233.48.0 9.233.63.255
9.237.96.0/19 8,192 9.237.96.0 9.237.127.255
9.237.128.0/18 16,384 9.237.128.0 9.237.191.255
9.237.192.0/19 8,192 9.237.192.0 9.237.223.255
15.145.20.0/22 1,024 15.145.20.0 15.145.23.255
23.26.70.0/24 256 23.26.70.0 23.26.70.255
23.26.108.0/24 256 23.26.108.0 23.26.108.255
23.26.117.0/24 256 23.26.117.0 23.26.117.255
23.26.131.0/24 256 23.26.131.0 23.26.131.255
23.26.192.0/24 256 23.26.192.0 23.26.192.255
23.27.32.0/21 2,048 23.27.32.0 23.27.39.255
23.27.40.0/24 256 23.27.40.0 23.27.40.255
23.27.102.0/23 512 23.27.102.0 23.27.103.255
23.27.104.0/22 1,024 23.27.104.0 23.27.107.255
23.27.108.0/24 256 23.27.108.0 23.27.108.255
23.230.82.0/23 512 23.230.82.0 23.230.83.255
23.230.242.0/24 256 23.230.242.0 23.230.242.255
23.230.252.0/24 256 23.230.252.0 23.230.252.255
31.48.0.0/13 524,288 31.48.0.0 31.55.255.255
31.90.0.0/15 131,072 31.90.0.0 31.91.255.255
31.92.0.0/15 131,072 31.92.0.0 31.93.255.255
31.94.0.0/16 65,536 31.94.0.0 31.94.255.255
31.96.0.0/16 65,536 31.96.0.0 31.96.255.255
31.100.0.0/14 262,144 31.100.0.0 31.103.255.255
31.104.0.0/16 65,536 31.104.0.0 31.104.255.255
31.106.0.0/15 131,072 31.106.0.0 31.107.255.255
31.112.0.0/13 524,288 31.112.0.0 31.119.255.255
31.120.0.0/14 262,144 31.120.0.0 31.123.255.255
31.124.0.0/16 65,536 31.124.0.0 31.124.255.255
31.126.0.0/15 131,072 31.126.0.0 31.127.255.255
31.130.240.0/23 512 31.130.240.0 31.130.241.255
37.44.229.0/24 256 37.44.229.0 37.44.229.255
37.44.230.0/23 512 37.44.230.0 37.44.231.255
37.97.112.0/22 1,024 37.97.112.0 37.97.115.255
37.143.0.0/22 1,024 37.143.0.0 37.143.3.255
37.230.61.0/24 256 37.230.61.0 37.230.61.255
40.27.28.0/24 256 40.27.28.0 40.27.28.255
40.27.72.0/24 256 40.27.72.0 40.27.72.255
45.39.116.0/24 256 45.39.116.0 45.39.116.255
45.39.188.0/24 256 45.39.188.0 45.39.188.255
45.149.7.0/24 256 45.149.7.0 45.149.7.255
45.149.168.0/22 1,024 45.149.168.0 45.149.171.255
46.68.0.0/15 131,072 46.68.0.0 46.69.255.255
46.248.96.0/22 1,024 46.248.96.0 46.248.99.255
46.248.102.0/23 512 46.248.102.0 46.248.103.255
46.248.104.0/23 512 46.248.104.0 46.248.105.255
46.248.120.0/22 1,024 46.248.120.0 46.248.123.255
50.117.7.0/24 256 50.117.7.0 50.117.7.255
50.117.51.0/24 256 50.117.51.0 50.117.51.255
50.118.154.0/23 512 50.118.154.0 50.118.155.255
51.14.0.0/16 65,536 51.14.0.0 51.14.255.255
51.64.32.0/24 256 51.64.32.0 51.64.32.255
51.64.34.0/23 512 51.64.34.0 51.64.35.255
51.146.44.0/22 1,024 51.146.44.0 51.146.47.255
51.146.128.0/22 1,024 51.146.128.0 51.146.131.255
51.146.136.0/22 1,024 51.146.136.0 51.146.139.255
51.146.235.0/24 256 51.146.235.0 51.146.235.255
51.146.252.0/22 1,024 51.146.252.0 51.146.255.255
51.149.18.0/23 512 51.149.18.0 51.149.19.255
51.194.36.0/23 512 51.194.36.0 51.194.37.255
51.194.100.0/22 1,024 51.194.100.0 51.194.103.255
51.230.0.0/17 32,768 51.230.0.0 51.230.127.255
51.230.255.0/24 256 51.230.255.0 51.230.255.255
51.241.3.0/24 256 51.241.3.0 51.241.3.255
51.241.201.0/24 256 51.241.201.0 51.241.201.255
62.6.0.0/15 131,072 62.6.0.0 62.7.255.255
62.172.0.0/16 65,536 62.172.0.0 62.172.255.255
62.192.124.0/23 512 62.192.124.0 62.192.125.255
62.239.0.0/16 65,536 62.239.0.0 62.239.255.255
62.244.11.0/24 256 62.244.11.0 62.244.11.255
62.244.12.0/24 256 62.244.12.0 62.244.12.255
62.244.29.0/24 256 62.244.29.0 62.244.29.255
62.244.36.0/23 512 62.244.36.0 62.244.37.255
62.244.41.0/24 256 62.244.41.0 62.244.41.255
62.244.43.0/24 256 62.244.43.0 62.244.43.255
62.244.45.0/24 256 62.244.45.0 62.244.45.255
62.244.56.0/24 256 62.244.56.0 62.244.56.255
64.205.136.0/22 1,024 64.205.136.0 64.205.139.255
64.205.144.0/22 1,024 64.205.144.0 64.205.147.255
72.9.180.0/22 1,024 72.9.180.0 72.9.183.255
77.90.135.0/24 256 77.90.135.0 77.90.135.255
77.90.138.0/24 256 77.90.138.0 77.90.138.255
77.90.145.0/24 256 77.90.145.0 77.90.145.255
77.90.151.0/24 256 77.90.151.0 77.90.151.255
77.90.153.0/24 256 77.90.153.0 77.90.153.255
77.90.164.0/24 256 77.90.164.0 77.90.164.255
77.90.184.0/24 256 77.90.184.0 77.90.184.255
77.94.224.0/24 256 77.94.224.0 77.94.224.255
78.105.97.0/24 256 78.105.97.0 78.105.97.255
78.105.136.0/22 1,024 78.105.136.0 78.105.139.255
78.105.151.0/24 256 78.105.151.0 78.105.151.255
78.105.175.0/24 256 78.105.175.0 78.105.175.255
78.105.179.0/24 256 78.105.179.0 78.105.179.255