Subnet Mask

nouncandidate·updated May 9, 2026

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A subnet mask (or number) is used to determine the number of bits used for the subnet and host portions of the address. The mask is a 32-bit value that uses one-bits for the network and subnet portions and zero-bits for the host portion.

MWE

Classifications

per-axis with provenance

Entity Type

Network95%rule-basedr:entity.network.gear.v1

?unassignedlast reviewed —

Sensitivity

unclassified

Information Class

unclassified

Variants

3 surface forms

plural: Subnet Masks
possessive: Subnet Mask's
pluralpossessive: Subnet Masks'

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