151.78.37.0/26

Public

Class B — /26 prefix — 62 usable hosts

Network Address
151.78.37.0
Broadcast Address
151.78.37.63
Subnet Mask
255.255.255.192
Usable Hosts
62
First Usable IP
151.78.37.1
Last Usable IP
151.78.37.62
Total IPs
64
Prefix Length
/26

Network address — the base address of the block (151.78.37.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 151.78.37.63 are delivered to every device in the subnet. Also reserved — not assignable.

Usable hosts — the 62 addresses between those two that you can assign to servers, VMs, or interfaces.

Subnet mask255.255.255.192 is the dotted-decimal equivalent of /26. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation 151.78.37.0/26
Network Address 151.78.37.0
Broadcast Address 151.78.37.63
Subnet Mask 255.255.255.192
Wildcard Mask 0.0.0.63
Prefix Length /26
IP Address Class Class B
Total IP Addresses 64
Usable Host Addresses 62
First Usable IP 151.78.37.1
Last Usable IP 151.78.37.62
Network (Hex) 0x974E2500
Broadcast (Hex) 0x974E253F
Address Type Public / Globally Routable

Binary Representation

Network Address
10010111.01001110.00100101 10010111.01001110.00100101.00000000
Subnet Mask
11111111.11111111.11111111.11000000

The first 26 bits (1s in the mask) identify the network. The remaining 6 bits identify hosts within the network.

Split into Equal Subnets

Split 151.78.37.0/26 into 2 equal /27 subnets (30 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 151.78.37.0/27 151.78.37.0 151.78.37.1 151.78.37.30 151.78.37.31 30
2 151.78.37.32/27 151.78.37.32 151.78.37.33 151.78.37.62 151.78.37.63 30

IP Address Sample

Showing first 16 of 64 total IPs.

151.78.37.0 net
151.78.37.1
151.78.37.2
151.78.37.3
151.78.37.4
151.78.37.5
151.78.37.6
151.78.37.7
151.78.37.8
151.78.37.9
151.78.37.10
151.78.37.11
151.78.37.12
151.78.37.13
151.78.37.14
151.78.37.15
… 48 more IPs …

/26 Subnet Reference

Total IPs 64
Usable Hosts 62
Subnet Mask 255.255.255.192
Wildcard 0.0.0.63

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