/25 Subnet Guide
Learn what a /25 IPv4 subnet means, including subnet mask, total addresses and usable hosts.
/25 CIDR Details
CIDR/25
Subnet Mask255.255.255.128
Total Addresses128
Usable Hosts126
Explanation: A /25 prefix uses 25 bits for the network and 7 bits for host addresses.
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This page is useful for subnet planning, CCNA study, MikroTik IP addressing, VLAN design and firewall documentation.