151.148.9.64/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
151.148.9.64
Broadcast Address
151.148.9.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
151.148.9.65
Last Usable IP
151.148.9.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (151.148.9.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 151.148.9.95 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 151.148.9.64/27
Network Address 151.148.9.64
Broadcast Address 151.148.9.95
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 151.148.9.65
Last Usable IP 151.148.9.94
Network (Hex) 0x97940940
Broadcast (Hex) 0x9794095F
Address Type Public / Globally Routable

Binary Representation

Network Address
10010111.10010100.00001001 10010111.10010100.00001001.01000000
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.

Subnet Breakdown — splitting into /28

This /27 block can be divided into 2 /28 subnets.

CIDR Network Broadcast First Usable Last Usable Hosts
151.148.9.64/28 151.148.9.64 151.148.9.79 151.148.9.65 151.148.9.78 14
151.148.9.80/28 151.148.9.80 151.148.9.95 151.148.9.81 151.148.9.94 14

IP Address Sample

Showing first 16 of 32 total IPs.

151.148.9.64 net
151.148.9.65
151.148.9.66
151.148.9.67
151.148.9.68
151.148.9.69
151.148.9.70
151.148.9.71
151.148.9.72
151.148.9.73
151.148.9.74
151.148.9.75
151.148.9.76
151.148.9.77
151.148.9.78
151.148.9.79
… 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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