IP address guide

What Is an IP Address?

An IP address is a public network address used to route traffic across the internet. When your browser, phone, server, or router communicates online, the traffic has source and destination IP addresses so networks know where to send packets.

IPv4 addresses use four decimal numbers, such as 8.8.8.8. IPv6 addresses use hexadecimal groups, such as 2001:4860:4860::8888. IPv6 exists because the internet outgrew the number of available IPv4 addresses.

What an IP lookup can show

An IP lookup can often show approximate country, region, city, ASN, provider, ISP, organization, and latitude/longitude. These fields come from public routing information and commercial or open geolocation datasets.

The result is best understood as network context. It can explain whether traffic is coming from a cloud platform, a residential access provider, a mobile carrier, a business network, or a public DNS resolver.

What an IP lookup cannot prove

An IP address usually cannot identify a precise person, apartment, office, or device. VPNs, carrier-grade NAT, corporate gateways, proxies, and cloud networks can place many users behind the same public address or make traffic appear in a different city.

Useful ways to use IP Atlas

IP Atlas is useful when you need a fast way to check your own public IP, inspect an unfamiliar address from logs, confirm ASN ownership, or understand the likely geography of a connection. Treat the result as a helpful signal, not as legal or identity proof.