IPv4
Checking via 4.ipchk.sh- Reverse DNS
- Network
- Location
IP address lookup
Your IP address
Your public IPv4 and IPv6 addresses as the internet sees them, with reverse DNS, the network that announces them and an approximate location.
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.
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
About IPchk.sh
IPchk.sh is a free tool published by DigitalFyre. It shows the public address your connection presents to the internet, with reverse DNS, the network that announces it and an approximate location.
This product includes GeoLite2 data created by MaxMind, available from maxmind.com. Network data from Team Cymru.
Privacy
IPchk.sh does not store the addresses it shows or looks up. It sets no cookies and loads no third-party scripts or fonts.