151.3.107.64/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
151.3.107.64
Broadcast Address
151.3.107.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
151.3.107.65
Last Usable IP
151.3.107.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (151.3.107.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 151.3.107.95 are delivered to every device in the subnet. Also reserved — not assignable.

Usable hosts — the 30 addresses between those two that you can assign to servers, VMs, or interfaces.

Subnet mask255.255.255.224 is the dotted-decimal equivalent of /27. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation 151.3.107.64/27
Network Address 151.3.107.64
Broadcast Address 151.3.107.95
Subnet Mask 255.255.255.224
Wildcard Mask 0.0.0.31
Prefix Length /27
IP Address Class Class B
Total IP Addresses 32
Usable Host Addresses 30
First Usable IP 151.3.107.65
Last Usable IP 151.3.107.94
Network (Hex) 0x97036B40
Broadcast (Hex) 0x97036B5F
Address Type Public / Globally Routable

Binary Representation

Network Address
10010111.00000011.01101011 10010111.00000011.01101011.01000000
Subnet Mask
11111111.11111111.11111111.11100000

The first 27 bits (1s in the mask) identify the network. The remaining 5 bits identify hosts within the network.

Split into Equal Subnets

Split 151.3.107.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 151.3.107.64/28 151.3.107.64 151.3.107.65 151.3.107.78 151.3.107.79 14
2 151.3.107.80/28 151.3.107.80 151.3.107.81 151.3.107.94 151.3.107.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

151.3.107.64 net
151.3.107.65
151.3.107.66
151.3.107.67
151.3.107.68
151.3.107.69
151.3.107.70
151.3.107.71
151.3.107.72
151.3.107.73
151.3.107.74
151.3.107.75
151.3.107.76
151.3.107.77
151.3.107.78
151.3.107.79
… 16 more IPs …

/27 Subnet Reference

Total IPs 32
Usable Hosts 30
Subnet Mask 255.255.255.224
Wildcard 0.0.0.31

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