Network & IP tools
Ownership, AS numbers, reverse DNS, ping and traceroute.
Network & IP
Ownership, AS numbers, reverse DNS, ping and traceroute.
CIDR calculator
Network, range, mask, usable hosts and reverse zone for any prefix.
Port checker
Which TCP ports answer from the internet, with service banners.
Ping
ICMP reachability and latency from London.
Traceroute
The path packets take from London to a host.
IP lookup
Who holds an address, which network announces it, and what its reverse DNS says.
AS number lookup
Name, country and registry for an autonomous system.