utility / Net
CIDR / Subnet Calculator
Calculate subnet ranges, broadcast addresses, and host counts from CIDR notation.
Runs locally
LOCAL WORKBENCH
Subnet / CIDR Calculator
Processed locally
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Field notes
Before you use it
What is CIDR notation?+
CIDR (Classless Inter-Domain Routing) notation like 192.168.1.0/24 represents a network address and its subnet mask length.