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What is a /14 subnet?

262,142 usable hosts out of 262,144 addresses, behind netmask 255.252.0.0.

Prefix/14
Netmask255.252.0.0
Wildcard0.3.255.255
Total addresses262,144
Usable hosts262,142
Example block10.0.0.0/14
Usable host range10.0.0.1 – 10.3.255.254
Broadcast10.3.255.255
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A /14 fixes the first 14 bits of the address as the network and leaves 18 for hosts — 262,144 addresses in all.

Of those, 262,142 can be given to a machine: the first address names the network itself, and the last is the broadcast address.

A block this large is an allocation rather than a subnet — a whole private range to carve up, or something a regional registry hands out. You would not put hosts directly in it.

It is 1,024 times the size of a /24.

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