Tools

My IP

The full picture of your own connection, assembled from what the network publicly records about this address.

IP Lookup

Look up any IPv4 or IPv6 address and see the network, registration and routing behind it.

Reverse DNS

Find the PTR record that belongs to an IP address.

ASN

Look up an autonomous system by name or number and see the address space it announces.

DNS

Query a domain's DNS records straight from the authoritative source.

WHOIS

See the registration record for a domain, IP range or autonomous system.

IPv4 subnet calculator

Network, broadcast, usable hosts, mask and binary notation.

IPv6 subnet calculator

Prefix, address count, /64 subnets and the full range.

CIDR calculator

Convert an IP range to CIDR and back again.

IP converter

Move between dotted notation, integer, hexadecimal and binary.