11.65.178.0/25

Public

Class A — /25 prefix — 126 usable hosts

Network Address
11.65.178.0
Broadcast Address
11.65.178.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
11.65.178.1
Last Usable IP
11.65.178.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (11.65.178.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 11.65.178.127 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 11.65.178.0/25
Network Address 11.65.178.0
Broadcast Address 11.65.178.127
Subnet Mask 255.255.255.128
Wildcard Mask 0.0.0.127
Prefix Length /25
IP Address Class Class A
Total IP Addresses 128
Usable Host Addresses 126
First Usable IP 11.65.178.1
Last Usable IP 11.65.178.126
Network (Hex) 0x0B41B200
Broadcast (Hex) 0x0B41B27F
Address Type Public / Globally Routable

Binary Representation

Network Address
00001011.01000001.10110010 00001011.01000001.10110010.00000000
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 11.65.178.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 11.65.178.0/26 11.65.178.0 11.65.178.1 11.65.178.62 11.65.178.63 62
2 11.65.178.64/26 11.65.178.64 11.65.178.65 11.65.178.126 11.65.178.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

11.65.178.0 net
11.65.178.1
11.65.178.2
11.65.178.3
11.65.178.4
11.65.178.5
11.65.178.6
11.65.178.7
11.65.178.8
11.65.178.9
11.65.178.10
11.65.178.11
11.65.178.12
11.65.178.13
11.65.178.14
11.65.178.15
… 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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