# used

> RouterOS directory reference for /ipv6/pool/used.

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## ipv6/pool/used 
**Type:** Directory

<ArgTable c1="Read-only Argument" c2="Type" c3="Description">
<ArgTableRow arg="pool" typ="enum">Name of the pool the prefix is reserved from.</ArgTableRow>
<ArgTableRow arg="prefix" typ="ip6Prefix">IPv6 prefix that is assigned to the client from the pool.</ArgTableRow>
<ArgTableRow arg="owner" typ="string">What reserved the prefix ("DHCP", etc.)</ArgTableRow>
<ArgTableRow arg="info" typ="string">Shows DUID related information received from the client (value in hex). Can contain also a raw timestamp in hex.</ArgTableRow>
</ArgTable>