212.159.9.0/25

Public

Class C — /25 prefix — 126 usable hosts

Network Address
212.159.9.0
Broadcast Address
212.159.9.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
212.159.9.1
Last Usable IP
212.159.9.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (212.159.9.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 212.159.9.127 are delivered to every device in the subnet. Also reserved — not assignable.

Usable hosts — the 126 addresses between those two that you can assign to servers, VMs, or interfaces.

Subnet mask255.255.255.128 is the dotted-decimal equivalent of /25. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation 212.159.9.0/25
Network Address 212.159.9.0
Broadcast Address 212.159.9.127
Subnet Mask 255.255.255.128
Wildcard Mask 0.0.0.127
Prefix Length /25
IP Address Class Class C
Total IP Addresses 128
Usable Host Addresses 126
First Usable IP 212.159.9.1
Last Usable IP 212.159.9.126
Network (Hex) 0xD49F0900
Broadcast (Hex) 0xD49F097F
Address Type Public / Globally Routable

Binary Representation

Network Address
11010100.10011111.00001001 11010100.10011111.00001001.00000000
Subnet Mask
11111111.11111111.11111111.10000000

The first 25 bits (1s in the mask) identify the network. The remaining 7 bits identify hosts within the network.

Split into Equal Subnets

Split 212.159.9.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 212.159.9.0/26 212.159.9.0 212.159.9.1 212.159.9.62 212.159.9.63 62
2 212.159.9.64/26 212.159.9.64 212.159.9.65 212.159.9.126 212.159.9.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

212.159.9.0 net
212.159.9.1
212.159.9.2
212.159.9.3
212.159.9.4
212.159.9.5
212.159.9.6
212.159.9.7
212.159.9.8
212.159.9.9
212.159.9.10
212.159.9.11
212.159.9.12
212.159.9.13
212.159.9.14
212.159.9.15
… 112 more IPs …

/25 Subnet Reference

Total IPs 128
Usable Hosts 126
Subnet Mask 255.255.255.128
Wildcard 0.0.0.127

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