175.103.209.0/25

Public

Class B — /25 prefix — 126 usable hosts

Network Address
175.103.209.0
Broadcast Address
175.103.209.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
175.103.209.1
Last Usable IP
175.103.209.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (175.103.209.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 175.103.209.127 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 175.103.209.0/25
Network Address 175.103.209.0
Broadcast Address 175.103.209.127
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 175.103.209.1
Last Usable IP 175.103.209.126
Network (Hex) 0xAF67D100
Broadcast (Hex) 0xAF67D17F
Address Type Public / Globally Routable

Binary Representation

Network Address
10101111.01100111.11010001 10101111.01100111.11010001.00000000
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 175.103.209.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 175.103.209.0/26 175.103.209.0 175.103.209.1 175.103.209.62 175.103.209.63 62
2 175.103.209.64/26 175.103.209.64 175.103.209.65 175.103.209.126 175.103.209.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

175.103.209.0 net
175.103.209.1
175.103.209.2
175.103.209.3
175.103.209.4
175.103.209.5
175.103.209.6
175.103.209.7
175.103.209.8
175.103.209.9
175.103.209.10
175.103.209.11
175.103.209.12
175.103.209.13
175.103.209.14
175.103.209.15
… 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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