172.36.71.0/25

Public

Class B — /25 prefix — 126 usable hosts

Network Address
172.36.71.0
Broadcast Address
172.36.71.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
172.36.71.1
Last Usable IP
172.36.71.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (172.36.71.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 172.36.71.127 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 172.36.71.0/25
Network Address 172.36.71.0
Broadcast Address 172.36.71.127
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 172.36.71.1
Last Usable IP 172.36.71.126
Network (Hex) 0xAC244700
Broadcast (Hex) 0xAC24477F
Address Type Public / Globally Routable

Binary Representation

Network Address
10101100.00100100.01000111 10101100.00100100.01000111.00000000
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 172.36.71.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 172.36.71.0/26 172.36.71.0 172.36.71.1 172.36.71.62 172.36.71.63 62
2 172.36.71.64/26 172.36.71.64 172.36.71.65 172.36.71.126 172.36.71.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

172.36.71.0 net
172.36.71.1
172.36.71.2
172.36.71.3
172.36.71.4
172.36.71.5
172.36.71.6
172.36.71.7
172.36.71.8
172.36.71.9
172.36.71.10
172.36.71.11
172.36.71.12
172.36.71.13
172.36.71.14
172.36.71.15
… 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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