180.237.9.0/25

Public

Class B — /25 prefix — 126 usable hosts

Network Address
180.237.9.0
Broadcast Address
180.237.9.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
180.237.9.1
Last Usable IP
180.237.9.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (180.237.9.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 180.237.9.127 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 180.237.9.0/25
Network Address 180.237.9.0
Broadcast Address 180.237.9.127
Subnet Mask 255.255.255.128
Wildcard Mask 0.0.0.127
Prefix Length /25
IP Address Class Class B
Total IP Addresses 128
Usable Host Addresses 126
First Usable IP 180.237.9.1
Last Usable IP 180.237.9.126
Network (Hex) 0xB4ED0900
Broadcast (Hex) 0xB4ED097F
Address Type Public / Globally Routable

Binary Representation

Network Address
10110100.11101101.00001001 10110100.11101101.00001001.00000000
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 180.237.9.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 180.237.9.0/26 180.237.9.0 180.237.9.1 180.237.9.62 180.237.9.63 62
2 180.237.9.64/26 180.237.9.64 180.237.9.65 180.237.9.126 180.237.9.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

180.237.9.0 net
180.237.9.1
180.237.9.2
180.237.9.3
180.237.9.4
180.237.9.5
180.237.9.6
180.237.9.7
180.237.9.8
180.237.9.9
180.237.9.10
180.237.9.11
180.237.9.12
180.237.9.13
180.237.9.14
180.237.9.15
… 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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