IP Address Guides
Understand the Internet without unnecessary jargon.
What is an IP address?
An IP address is a numerical identifier used to route data between your connection and Internet services.
Read →IPv4: format and operation
IPv4 uses 32 bits and is written as four numbers, for example 192.0.2.1.
Read →IPv6: Understanding 128-bit addresses
IPv6 offers a huge address space and simplifies the routing of millions of devices.
Read →Public or private IP: what's the difference?
A public IP is routable on the Internet; a private IP remains in your local network.
Read →Fixed or dynamic IP
A dynamic IP can change; a fixed IP remains allocated on a long-term basis according to the operator's offer.
Read →Can I be located with my IP?
An IP usually locates a country or network region, never a reliable postal address.
Read →How to change your IP address
The method depends on your carrier, your type of connection, and the purpose you're looking for.
Read →VPN, Proxy, and Tor: The Differences
These technologies change the path of your traffic, with different guarantees and uses.
Read →Understanding CGNAT
CGNAT allows multiple subscribers to share a single public IPv4 address.
Read →What is an ASN?
An Autonomous System Number identifies a network that advertises routes over the Internet.
Read →Reverse DNS and PTR record
Reverse DNS associates an IP address with a hostname through a PTR record.
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