IPv6 subnet calculator

IPv6 CIDR range for 2408:8207:4000::/34

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 2408:8207:4000::/34

The prefix identifies a network with 94 host bits. Every address from the first address through the last address belongs to this range.

CIDR prefix

2408:8207:4000::/34

Network mask

ffff:ffff:c000::

Prefix length

/34

Host bits

94

First address

2408:8207:4000::

Last address

2408:8207:7fff:ffff:ffff:ffff:ffff:ffff

Total addresses

19807040628566084398385987584

Total addresses (human readable)

2^94 addresses (19,807,040,628,566,084,398,385,987,584; about 19.8 octillion)

How this range is calculated

  1. 1The /34 prefix keeps the first 34 network bits fixed.
  2. 2Setting all 94 host bits to zero produces 2408:8207:4000::.
  3. 3Setting those host bits to one produces 2408:8207:7fff:ffff:ffff:ffff:ffff: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

2408:8207:4000:0000:0000:0000:0000:0000

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