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Autonomous system

AS5400

Autonomous System
Autonomous System Number (ASN)
AS5400
Country
United Kingdom of Great Britain and Northern Ireland (GB)
Organization
British Telecommunications Limited
Handle
BT
Names and aliases
British Telecom, British Telecommunications PLC
Websites
http://www.bt.net
Category
isp
Network Role
major_transit
Number of IPv4
714,240
Number of IPv6
7.1709 x 10^31
IPv4 Prefixes

Showing up to 100 prefixes per page.

Prefix Address Count First Address Last Address
31.95.0.0/21 2,048 31.95.0.0 31.95.7.255
31.95.14.0/23 512 31.95.14.0 31.95.15.255
31.95.16.0/20 4,096 31.95.16.0 31.95.31.255
31.95.48.0/21 2,048 31.95.48.0 31.95.55.255
31.95.56.0/24 256 31.95.56.0 31.95.56.255
31.95.64.0/21 2,048 31.95.64.0 31.95.71.255
31.95.96.0/19 8,192 31.95.96.0 31.95.127.255
31.95.160.0/20 4,096 31.95.160.0 31.95.175.255
31.95.184.0/21 2,048 31.95.184.0 31.95.191.255
31.95.208.0/21 2,048 31.95.208.0 31.95.215.255
31.95.218.0/23 512 31.95.218.0 31.95.219.255
31.95.220.0/22 1,024 31.95.220.0 31.95.223.255
31.95.240.0/22 1,024 31.95.240.0 31.95.243.255
31.95.246.0/23 512 31.95.246.0 31.95.247.255
31.95.248.0/22 1,024 31.95.248.0 31.95.251.255
31.95.254.0/23 512 31.95.254.0 31.95.255.255
46.248.8.0/22 1,024 46.248.8.0 46.248.11.255
62.5.0.0/17 32,768 62.5.0.0 62.5.127.255
62.102.0.0/17 32,768 62.102.0.0 62.102.127.255
62.134.0.0/16 65,536 62.134.0.0 62.134.255.255
62.172.0.0/21 2,048 62.172.0.0 62.172.7.255
62.173.192.0/18 16,384 62.173.192.0 62.173.255.255
62.180.0.0/16 65,536 62.180.0.0 62.180.255.255
80.255.160.0/20 4,096 80.255.160.0 80.255.175.255
82.138.160.0/19 8,192 82.138.160.0 82.138.191.255
82.150.0.0/19 8,192 82.150.0.0 82.150.31.255
132.244.64.0/20 4,096 132.244.64.0 132.244.79.255
132.244.240.0/24 256 132.244.240.0 132.244.240.255
136.238.84.0/23 512 136.238.84.0 136.238.85.255
136.238.224.0/24 256 136.238.224.0 136.238.224.255
166.49.128.0/17 32,768 166.49.128.0 166.49.255.255
185.94.0.0/22 1,024 185.94.0.0 185.94.3.255
185.249.4.0/24 256 185.249.4.0 185.249.4.255
192.109.52.0/24 256 192.109.52.0 192.109.52.255
193.58.130.0/23 512 193.58.130.0 193.58.131.255
194.33.53.0/24 256 194.33.53.0 194.33.53.255
194.33.54.0/23 512 194.33.54.0 194.33.55.255
194.50.160.0/24 256 194.50.160.0 194.50.160.255
194.74.80.0/21 2,048 194.74.80.0 194.74.87.255
194.76.40.0/24 256 194.76.40.0 194.76.40.255
194.107.114.0/24 256 194.107.114.0 194.107.114.255
194.213.64.0/19 8,192 194.213.64.0 194.213.95.255
195.36.82.0/24 256 195.36.82.0 195.36.82.255
195.36.104.0/24 256 195.36.104.0 195.36.104.255
195.60.182.0/23 512 195.60.182.0 195.60.183.255
195.66.70.0/24 256 195.66.70.0 195.66.70.255
195.90.64.0/19 8,192 195.90.64.0 195.90.95.255
195.99.64.0/20 4,096 195.99.64.0 195.99.79.255
195.100.0.0/16 65,536 195.100.0.0 195.100.255.255
195.163.0.0/16 65,536 195.163.0.0 195.163.255.255
195.171.36.0/22 1,024 195.171.36.0 195.171.39.255
195.182.96.0/19 8,192 195.182.96.0 195.182.127.255
198.178.236.0/24 256 198.178.236.0 198.178.236.255
203.158.68.0/23 512 203.158.68.0 203.158.69.255
203.158.72.0/23 512 203.158.72.0 203.158.73.255
203.158.76.0/23 512 203.158.76.0 203.158.77.255
203.158.88.0/23 512 203.158.88.0 203.158.89.255
204.52.188.0/24 256 204.52.188.0 204.52.188.255
206.73.0.0/16 65,536 206.73.0.0 206.73.255.255
212.8.160.0/19 8,192 212.8.160.0 212.8.191.255
212.21.192.0/19 8,192 212.21.192.0 212.21.223.255
212.31.192.0/19 8,192 212.31.192.0 212.31.223.255
212.41.128.0/19 8,192 212.41.128.0 212.41.159.255
212.108.0.0/19 8,192 212.108.0.0 212.108.31.255
212.127.0.0/19 8,192 212.127.0.0 212.127.31.255
212.162.192.0/18 16,384 212.162.192.0 212.162.255.255
213.15.0.0/16 65,536 213.15.0.0 213.15.255.255
213.137.160.0/19 8,192 213.137.160.0 213.137.191.255
213.194.0.0/18 16,384 213.194.0.0 213.194.63.255
213.236.64.0/18 16,384 213.236.64.0 213.236.127.255