Why don't I have an IPv6 address?

Usually because your internet provider doesn't offer IPv6 on your plan yet, or your router isn't requesting it. It can also be switched off on your device or blocked by a VPN. Everything still works over IPv4.

Can I have both IPv4 and IPv6?

Yes, and most IPv6 connections do. This is called dual stack: your device has both addresses and uses IPv6 for sites that support it and IPv4 for the rest.

Why does my IPv6 address keep changing?

Most phones and computers use temporary IPv6 addresses for privacy and replace them regularly, often daily. Some providers also change the whole prefix they give your router from time to time.

Is IPv6 faster than IPv4?

Not inherently. Speed depends on your provider's network. IPv6 can be slightly quicker on networks that would otherwise route IPv4 through carrier-grade NAT, but most people won't notice a difference.

Should I disable IPv6?

Usually not. Modern systems are built to use it, and some services work better over IPv6. Disabling it is mostly a troubleshooting step or a VPN leak precaution.

Can I get my IPv6 address from the terminal?

Use this page in a browser. ip.dealwithmuhammad.com is reached over IPv4, so curl ip.dealwithmuhammad.com shows your IPv4 address. On your own machine, ip -6 addr (Linux), ifconfig (Mac) or ipconfig (Windows) lists the IPv6 addresses your device has.

What is my IPv6 address?

Q: What is my IPv6 address?

Your public IPv6 address is shown at the top of this page, if your connection has one. It's the address websites see when you connect to them over IPv6. If it says no IPv6 address was detected, your connection is IPv4 only.

Your IPv6 address, if your connection has one, is shown below next to your IPv4 address. Your browser checks each one separately, so you can see at a glance whether your network supports IPv6.

IPv4: 216.73.216.195
IPv6

Checking for IPv6…

Look up an IPv6 address

Paste any IPv6 address to see its owner, network and approximate location.

Try:

How to check your IPv6 address

1
Open this page
On the device and network you want to check. Your IPv4 and IPv6 addresses are checked as soon as it loads.
2
Read the result
If an IPv6 address appears, your connection supports IPv6. If it says no IPv6 address was detected, you're on IPv4 only.
3
Copy or look it up
Copy your address with one click, or paste any IPv6 address into the lookup box to see its owner, network and location.

IPv4 vs IPv6

IPv4: 32-bit addresses written as four numbers, like 203.0.113.42. There are only about 4.3 billion of them, so providers share them between customers.
IPv6: 128-bit addresses written in hexadecimal, like 2001:db8:85a3::8a2e:370:7334. There are enough for every device to have its own public address.
Dual stack: Most networks with IPv6 also keep IPv4, so you have both and your device uses whichever works best for each site.

Why you might not have an IPv6 address

Your provider doesn't offer it yet: Many home and business providers still only hand out IPv4, or only enable IPv6 on newer plans and equipment.
Your router isn't passing it on: The router has to request an IPv6 prefix from your provider and hand addresses to your devices. Look for an IPv6 setting (often called native, DHCPv6 or prefix delegation) in its admin page.
It's turned off on your device or VPN: IPv6 can be disabled in a network adapter's settings, and some VPNs block IPv6 to stop it bypassing the tunnel.
The check was blocked: Your browser checks IPv6 by contacting ipify's IPv6-only address. A strict ad blocker or firewall can block that, which also shows as no IPv6.

Need a deeper IPv6 test?

This page answers the everyday question: do you have IPv6, and what's the address? If you're troubleshooting a network, test-ipv6.com also checks DNS over IPv6, large packets and fallback behaviour.

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Frequently asked questions

Updated October 2026