IPv6 subnet calculator

IPv6 CIDR range for 2000:a1:b2:c3:d4:e5:f6:c000/114

Calculate the network address, final address, mask, and exact address capacity of any IPv6 CIDR prefix.

Example: 2606:4700::/32

Host bits are normalized to the network address before the range is calculated.

CIDR calculation

Network details for 2000:a1:b2:c3:d4:e5:f6:c000/114

The prefix identifies a network with 14 host bits. Every address from the first address through the last address belongs to this range.

CIDR prefix

2000:a1:b2:c3:d4:e5:f6:c000/114

Network mask

ffff:ffff:ffff:ffff:ffff:ffff:ffff:c000

Prefix length

/114

Host bits

14

First address

2000:a1:b2:c3:d4:e5:f6:c000

Last address

2000:a1:b2:c3:d4:e5:f6:ffff

Total addresses

16384

Total addresses (human readable)

2^14 addresses (16,384; about 16.38 thousand)

How this range is calculated

  1. 1The /114 prefix keeps the first 114 network bits fixed.
  2. 2Setting all 14 host bits to zero produces 2000:a1:b2:c3:d4:e5:f6:c000.
  3. 3Setting those host bits to one produces 2000:a1:b2:c3:d4:e5:f6:ffff.

Network address

The normalized prefix base

CIDR notation describes a network, not a single host. If an address with host bits set is entered, this calculator normalizes it to the network base before calculating the range.

Expanded network address

2000:00a1:00b2:00c3:00d4:00e5:00f6:c000

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