IPv4 vs IPv6: the differences
How IPv4 and IPv6 differ, and how to tell which one your IP is.
IPv4
An address made of four numbers separated by dots, like 8.8.8.8. About 4.3 billion can exist and almost all are in use, so routers sharing one address among devices is common.
IPv6
An address in hexadecimal separated by colons, like 2001:4860:4860::8888. The number of addresses is practically unlimited, so every device can have its own public address.
Many connections use both
Most providers and phones today support both IPv4 and IPv6. If the site you visit supports IPv6 you connect over IPv6, otherwise over IPv4. So the type of IP you see can differ from site to site.
Check which one you have
See the IP version field in the IPinfoBox details to tell whether it is IPv4 or IPv6.
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