180.252.71.0/25

Public

Class B — /25 prefix — 126 usable hosts

Network Address
180.252.71.0
Broadcast Address
180.252.71.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
180.252.71.1
Last Usable IP
180.252.71.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (180.252.71.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 180.252.71.127 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 180.252.71.0/25
Network Address 180.252.71.0
Broadcast Address 180.252.71.127
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 180.252.71.1
Last Usable IP 180.252.71.126
Network (Hex) 0xB4FC4700
Broadcast (Hex) 0xB4FC477F
Address Type Public / Globally Routable

Binary Representation

Network Address
10110100.11111100.01000111 10110100.11111100.01000111.00000000
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 180.252.71.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 180.252.71.0/26 180.252.71.0 180.252.71.1 180.252.71.62 180.252.71.63 62
2 180.252.71.64/26 180.252.71.64 180.252.71.65 180.252.71.126 180.252.71.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

180.252.71.0 net
180.252.71.1
180.252.71.2
180.252.71.3
180.252.71.4
180.252.71.5
180.252.71.6
180.252.71.7
180.252.71.8
180.252.71.9
180.252.71.10
180.252.71.11
180.252.71.12
180.252.71.13
180.252.71.14
180.252.71.15
… 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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