IPv4 Subnet Calculator

Network Information

Network Address-
Broadcast Address-
First Usable IP-
Last Usable IP-

Subnet Details

Usable Hosts-
Wildcard Mask-
CIDR Notation-
IP Class-

Subnet Mask (Binary)

Binary-
Fast, accurate IPv4 subnetting for network engineers and students. The tool handles classful and classless addressing. For a deeper breakdown of subnet masks, wildcard bits, and usable hosts, check out the full article.
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