IPv6 Detection · Connectivity Check

What Is My IPv6 Address?

Detect your public IPv6 address instantly. Check if your network supports IPv6, see your full and compressed address, and generate ready-to-paste whitelist configs for AWS, GCP, and Linux.

ipwhitelist.dev — IPv6 detection
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Your Public IPv6 Address
Detecting…
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What is an IPv6 address?

IPv6 (Internet Protocol version 6) is the latest version of the Internet Protocol. While IPv4 addresses look like 192.168.1.1, IPv6 addresses are 128-bit numbers written in hexadecimal — for example 2001:db8:85a3::8a2e:370:7334. IPv6 was developed to solve IPv4 address exhaustion, providing approximately 340 undecillion unique addresses.

Do I need IPv6?

Most internet traffic still uses IPv4, but IPv6 adoption is growing rapidly. Major cloud providers (AWS, GCP, Azure) and content delivery networks support IPv6. If you're deploying infrastructure, configuring firewalls, or whitelisting IPs, you may need to handle both IPv4 and IPv6 addresses to ensure full connectivity.

How to whitelist an IPv6 address

This page auto-generates all these configs with your detected IPv6 address. For IPv4 configs, use the main IP Whitelist tool.

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FAQ

IPv6 questions

Why don't I have an IPv6 address?
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Your ISP may not support IPv6 yet, or it may be disabled on your router or operating system. IPv6 adoption varies significantly by country and ISP. Some corporate networks also disable IPv6 by default. You can still use the internet normally with IPv4 only — IPv6 is not required for most activities.
What does /128 mean in IPv6?
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In IPv6, /128 is the CIDR notation for a single host address — equivalent to /32 in IPv4. It means only that exact IPv6 address is included in the rule. When whitelisting your IPv6 address in a firewall, always use /128 to whitelist only your specific address, not an entire subnet.
Is IPv6 more secure than IPv4?
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IPv6 was designed with security in mind and mandates IPsec support, which provides authentication and encryption at the network layer. However, the massive address space means traditional network scanning is impractical. In practice, security depends more on your firewall and application configuration than the IP version itself.
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