171.236.208.0/25

Public

Class B — /25 prefix — 126 usable hosts

Network Address
171.236.208.0
Broadcast Address
171.236.208.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
171.236.208.1
Last Usable IP
171.236.208.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (171.236.208.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 171.236.208.127 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 171.236.208.0/25
Network Address 171.236.208.0
Broadcast Address 171.236.208.127
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 171.236.208.1
Last Usable IP 171.236.208.126
Network (Hex) 0xABECD000
Broadcast (Hex) 0xABECD07F
Address Type Public / Globally Routable

Binary Representation

Network Address
10101011.11101100.11010000 10101011.11101100.11010000.00000000
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 171.236.208.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 171.236.208.0/26 171.236.208.0 171.236.208.1 171.236.208.62 171.236.208.63 62
2 171.236.208.64/26 171.236.208.64 171.236.208.65 171.236.208.126 171.236.208.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

171.236.208.0 net
171.236.208.1
171.236.208.2
171.236.208.3
171.236.208.4
171.236.208.5
171.236.208.6
171.236.208.7
171.236.208.8
171.236.208.9
171.236.208.10
171.236.208.11
171.236.208.12
171.236.208.13
171.236.208.14
171.236.208.15
… 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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