RouterNAT utilities
Free Router and IP Tools
Use free network tools for public IP checks, IP lookup, and CGNAT detection.
What Is My IP?
Show the public IPv4 or IPv6 address visible to websites. Review approximate ISP, ASN, location, and timezone details when available.
Check my public IPIP Address Lookup
Enter a public IPv4 or IPv6 address to review its address family, approximate location, ISP, organization, and autonomous system number.
Open IP lookupCGNAT Checker
Compare your router WAN address with the public address visible to RouterNAT and identify likely CGNAT or upstream private NAT.
Check for CGNATResponsible use and accuracy
IP geolocation is approximate. A result may identify an ISP gateway, corporate network, VPN exit, or nearby city instead of a device’s physical position.
VPNs, proxies, mobile networks, and carrier-grade NAT can change the address or location shown. Confirm important network decisions with your ISP or an authorized administrator.
Privacy
RouterNAT does not save submitted or displayed IP addresses in its application database. A geolocation provider processes public-IP lookups, while standard server logs may contain connection information for security and operations.