130.176.1.0/25

Public

Class B — /25 prefix — 126 usable hosts

Network Address
130.176.1.0
Broadcast Address
130.176.1.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
130.176.1.1
Last Usable IP
130.176.1.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (130.176.1.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 130.176.1.127 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 130.176.1.0/25
Network Address 130.176.1.0
Broadcast Address 130.176.1.127
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 130.176.1.1
Last Usable IP 130.176.1.126
Network (Hex) 0x82B00100
Broadcast (Hex) 0x82B0017F
Address Type Public / Globally Routable

Binary Representation

Network Address
10000010.10110000.00000001 10000010.10110000.00000001.00000000
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 130.176.1.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 130.176.1.0/26 130.176.1.0 130.176.1.1 130.176.1.62 130.176.1.63 62
2 130.176.1.64/26 130.176.1.64 130.176.1.65 130.176.1.126 130.176.1.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

130.176.1.0 net
130.176.1.1
130.176.1.2
130.176.1.3
130.176.1.4
130.176.1.5
130.176.1.6
130.176.1.7
130.176.1.8
130.176.1.9
130.176.1.10
130.176.1.11
130.176.1.12
130.176.1.13
130.176.1.14
130.176.1.15
… 112 more IPs …

/25 Subnet Reference

Total IPs 128
Usable Hosts 126
Subnet Mask 255.255.255.128
Wildcard 0.0.0.127

Calculate Another