201.157.105.0/25

Public

Class C — /25 prefix — 126 usable hosts

Network Address
201.157.105.0
Broadcast Address
201.157.105.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
201.157.105.1
Last Usable IP
201.157.105.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (201.157.105.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 201.157.105.127 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 201.157.105.0/25
Network Address 201.157.105.0
Broadcast Address 201.157.105.127
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 201.157.105.1
Last Usable IP 201.157.105.126
Network (Hex) 0xC99D6900
Broadcast (Hex) 0xC99D697F
Address Type Public / Globally Routable

Binary Representation

Network Address
11001001.10011101.01101001 11001001.10011101.01101001.00000000
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 201.157.105.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 201.157.105.0/26 201.157.105.0 201.157.105.1 201.157.105.62 201.157.105.63 62
2 201.157.105.64/26 201.157.105.64 201.157.105.65 201.157.105.126 201.157.105.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

201.157.105.0 net
201.157.105.1
201.157.105.2
201.157.105.3
201.157.105.4
201.157.105.5
201.157.105.6
201.157.105.7
201.157.105.8
201.157.105.9
201.157.105.10
201.157.105.11
201.157.105.12
201.157.105.13
201.157.105.14
201.157.105.15
… 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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