$ipv6-range --prefix 2001:db8::/48

IPv6 Range Calculator

Enter an IPv6 prefix like 2001:db8::/32 to instantly calculate the start address, end address, and total number of addresses in the range. Visualize the full IPv6 address block boundaries — ideal for prefix delegation, address allocation, and planning IPv6 subnet assignments.

Enter IPv6 Prefix

IPv6 Address

Prefix Length

Range Results

Network Address

First Address

Last Address

Total Addresses

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