IPv4-mapped IPv6

IPv4-mapped IPv6 address for 216.73.217.122

Convert an IPv4 address into IPv4-mapped IPv6 notation for dual-stack applications, logs, socket APIs, and network troubleshooting.

Read: IPv4-mapped IPv6 addresses explained

The conversion runs locally and does not use an external lookup service.

Conversion result

IPv4-mapped IPv6 address for 216.73.217.122

IPv4 input

216.73.217.122

IPv6 mapped output

::ffff:d849:d97a

Expanded IPv6 address

0000:0000:0000:0000:0000:ffff:d849:d97a

IPv4 dotted-quad notation

::ffff:216.73.217.122

::ffff:d849:d97a is the IPv4-mapped IPv6 representation of 216.73.217.122. It embeds the 32-bit IPv4 value after the ::ffff: prefix.

IPv4-mapped addresses are commonly used by dual-stack software to represent IPv4 peers in an IPv6-aware API. They do not turn an IPv4-only host into a natively routed IPv6 host.

The compact hexadecimal, expanded, and dotted-quad forms above represent the same 128-bit IPv6 value. Dotted-quad notation makes the embedded IPv4 address easier to recognize in logs and diagnostics.

Learn how IPv4-mapped IPv6 addresses work and how mapping differs from IPv4-to-IPv6 translation.

Recent conversions

Recent IPv4 to IPv6 Conversions

Open recent IPv4 inputs to view their IPv4-mapped IPv6, expanded, and dotted-quad forms.