IP Lookup: What Is My IP Address?

It is shown at the top of this page as soon as it loads, with your country and the Cloudflare data centre that served you; the network owner (your ISP) appears a moment later from the registry record. This is your public address, the one websites see. Your phone or laptop also has a private address such as 192.168.1.10 on your home Wi-Fi, which only your router sees.

No. The registry record names the network owner, such as TM TECHNOLOGY SERVICES SDN BHD for 175.136.0.0/13, and its country, not the person using the address. Only the ISP can link an address to a subscriber at a given time, and Malaysian ISPs release that only to authorities such as the police when the law requires it. City-level IP location shown by other sites is an estimate and is often wrong by tens of kilometres.

100.64.0.0/10 is carrier-grade NAT space (RFC 6598): many mobile and some fibre customers share one public address, and your router's WAN address falls in that range. Home broadband and mobile data addresses are usually dynamic, so they change when the router or phone reconnects. A fixed (static) IP is normally a business plan add-on.

RFC 1918 sets aside 10.0.0.0/8, 172.16.0.0/12 and 192.168.0.0/16 for private networks: they are never routed on the internet, so millions of homes use 192.168.0.1 for their router without conflict. IPv6 uses fc00::/7 (unique local) for the same purpose. The lookup labels these and does not query a registry for them.

Look the address up and email the abuse contact shown, which comes from the registry record (for TM's block it is [email protected]). Include the IP address, the exact date, time and time zone, and log lines or email headers. For scams or threats in Malaysia, also report to the police or the NSRC on 997.

Reverse DNS turns an address back into a host name using a PTR record under in-addr.arpa (IPv4) or ip6.arpa (IPv6): 8.8.8.8 is looked up as 8.8.8.8.in-addr.arpa and answers dns.google. Mail servers check it to spot spam. Many home connections have no PTR record or a generic one set by the ISP.

This site stores nothing. To find your IP, the page asks this site's own server. To look up an owner, the address is sent to the regional internet registry through rdap.org, and for reverse DNS or domains the name is sent to Cloudflare's public DNS resolver (Google's as fallback); these are the same public services any network tool uses. Private addresses are never sent anywhere.