IPv4
Checking via 4.ipchk.sh- Reverse DNS
- Network
- Location
Your IP addresses
IPv6
Checking via 6.ipchk.sh- Reverse DNS
- Network
- Location
Details
Location and network for the selected address.
Location
MaxMind GeoLite2- Country
- Region
- City
Location is approximate. It usually points to where the network is routed or registered, not to a street address.
Network
Team Cymru · DNS- Address
- Reverse DNS
- ASN
Prefix, registry and allocation date come from the Team Cymru IP to ASN mapping, which follows global BGP routing.
This product includes GeoLite2 data created by MaxMind, available from maxmind.com. Network data from Team Cymru.
Look up an IP address
Reverse DNS, network and approximate location for any public IPv4 or IPv6 address.
Command line
Every lookup works from a terminal. No key and no sign-up. Plain text by default, JSON under /api.
Hosts
- ipchk.sh
- IPv4 or IPv6, whichever your system prefers
- 4.ipchk.sh
- IPv4 only
- 6.ipchk.sh
- IPv6 only
Paths
- / or /ip
- Address
- /ptr
- Reverse DNS
- /asn
- Network and ASN
- /api/all
- Everything, as JSON