CLOUDEK · Networking

IPv6 subnet calculator

Calculate an IPv6 network prefix and exact inclusive address range using 128-bit arithmetic in your browser.

▦NETWORKING

IPv6 subnet calculator

Calculate an IPv6 network and inclusive address range with exact 128-bit math.

IPv6 addressPrefix length

Local calculation only. IPv6 has no broadcast address; this displays the inclusive prefix range.

Use this result carefully

Calculate an IPv6 network prefix and exact inclusive address range using 128-bit arithmetic in your browser.

Review the limits and privacy notes shown with the tool. Important configuration or security decisions should be checked against authoritative systems and your organization’s approved procedures.

Browse the complete free IT tools directory