This tool allows you to lookup current live BGP routing data for a specific autonomous system.
This will report the current IPv4/IPv6 prefixes announced from or via a specific AS number.
Routers around the internet announce the IP prefixes they handle routing for to their peers.
Each peer decides, for each IP prefix, which path is chosen for the active routing table entry.
Generally, a more specific IP prefix will be chosen over a less specific one but this is not always the case.
Each border router decides what next-hop will be taken for each prefix.
NOTE: By default, this tool will report 32-bit ASNs in ASDOT format, use the checkbox to use ASPLAIN.
2001:43c8::/32 AS20928 2c0f:fee0::/32 AS33785 41.77.136.0/24 AS33785 41.77.137.0/24 AS33785 41.77.138.0/24 AS33785 41.77.139.0/24 AS33785 41.77.140.0/24 AS33785 41.77.141.0/24 AS33785 41.78.23.0/24 AS37191 41.79.209.0/24 AS37437 41.187.0.0/16 AS20928 41.187.0.0/17 AS20928 41.187.64.0/24 AS20928 41.187.91.0/24 AS20928 41.187.97.0/24 AS20928 41.187.98.0/24 AS20928 41.187.102.0/24 AS20928 41.187.108.0/24 AS20928 41.187.113.0/24 AS20928 41.187.114.0/24 AS20928 41.187.115.0/24 AS20928 41.187.117.0/24 AS20928 41.187.120.0/24 AS20928 41.187.128.0/17 AS20928 41.187.199.0/24 AS20928 41.205.102.0/24 AS30993 41.205.105.0/24 AS30993 41.205.109.0/24 AS30993 41.205.110.0/24 AS30993 41.205.111.0/24 AS30993 41.205.112.0/24 AS30993 41.205.113.0/24 AS30993 41.205.114.0/24 AS30993 41.205.115.0/24 AS30993 41.205.116.0/24 AS30993 41.205.117.0/24 AS30993 41.205.118.0/24 AS30993 41.205.119.0/24 AS30993 41.205.120.0/24 AS30993 41.205.121.0/24 AS30993 41.205.122.0/24 AS30993 41.205.123.0/24 AS30993 41.205.124.0/24 AS30993 41.205.125.0/24 AS30993 41.205.126.0/24 AS30993 41.205.127.0/24 AS30993 41.215.240.0/24 AS33785 41.215.241.0/24 AS33785 41.215.242.0/24 AS33785 41.217.224.0/24 AS37031 41.217.225.0/24 AS37031 41.222.169.0/24 AS37031 41.222.170.0/24 AS37031 41.222.171.0/24 AS37031 41.222.173.0/24 AS37031 41.222.175.0/24 AS37031 41.223.52.0/24 AS33785 41.223.53.0/24 AS33785 102.69.150.0/24 AS5.804 102.128.176.0/22 AS5.725 102.128.180.0/23 AS5.725 102.164.122.0/24 AS5.628 102.217.68.0/22 AS37191 102.217.68.0/24 AS37191 102.217.69.0/24 AS37191 102.217.70.0/24 AS37191 102.223.144.0/24 AS5.965 102.223.146.0/24 AS5.965 102.223.242.0/24 AS5.974 167.1.178.0/24 AS15084 169.239.38.0/23 AS37191 196.13.244.0/24 AS5.725 196.20.60.0/24 AS30993 196.20.61.0/24 AS30993 196.20.62.0/24 AS30993 196.41.73.0/24 AS5.425 196.46.188.0/22 AS33785 196.201.246.0/24 AS30993 196.201.247.0/24 AS30993 196.223.16.0/23 AS37252 197.246.0.0/16 AS20928 197.246.0.0/17 AS20928 197.246.128.0/17 AS20928 197.246.224.0/24 AS20928 212.12.224.0/24 AS15804 212.12.225.0/24 AS15804 212.12.226.0/24 AS15804 212.12.227.0/24 AS15804 212.12.229.0/24 AS15804 212.12.230.0/24 AS15804 212.12.231.0/24 AS15804 212.12.232.0/24 AS15804 212.12.233.0/24 AS15804 212.12.234.0/24 AS15804 212.12.235.0/24 AS15804 212.12.236.0/24 AS15804 212.12.237.0/24 AS15804 212.12.238.0/24 AS15804 212.12.239.0/24 AS15804 212.12.240.0/24 AS15804 212.12.241.0/24 AS15804 212.12.242.0/24 AS15804 212.12.243.0/24 AS15804 212.12.244.0/24 AS15804 212.12.245.0/24 AS15804 212.12.246.0/24 AS15804 212.12.247.0/24 AS15804 212.12.248.0/24 AS15804 212.12.249.0/24 AS15804 212.12.250.0/24 AS15804 212.12.251.0/24 AS15804 212.12.252.0/24 AS15804 212.12.254.0/24 AS15804 212.12.255.0/24 AS15804 217.139.0.0/16 AS20928 217.139.0.0/17 AS20928 217.139.128.0/17 AS20928 117 total prefixes (2 IPv6, 115 IPv4)