130.177.185.0/25

Public

Class B — /25 prefix — 126 usable hosts

Network Address
130.177.185.0
Broadcast Address
130.177.185.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
130.177.185.1
Last Usable IP
130.177.185.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (130.177.185.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 130.177.185.127 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 130.177.185.0/25
Network Address 130.177.185.0
Broadcast Address 130.177.185.127
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 130.177.185.1
Last Usable IP 130.177.185.126
Network (Hex) 0x82B1B900
Broadcast (Hex) 0x82B1B97F
Address Type Public / Globally Routable

Binary Representation

Network Address
10000010.10110001.10111001 10000010.10110001.10111001.00000000
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 130.177.185.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 130.177.185.0/26 130.177.185.0 130.177.185.1 130.177.185.62 130.177.185.63 62
2 130.177.185.64/26 130.177.185.64 130.177.185.65 130.177.185.126 130.177.185.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

130.177.185.0 net
130.177.185.1
130.177.185.2
130.177.185.3
130.177.185.4
130.177.185.5
130.177.185.6
130.177.185.7
130.177.185.8
130.177.185.9
130.177.185.10
130.177.185.11
130.177.185.12
130.177.185.13
130.177.185.14
130.177.185.15
… 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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