159.248.128.64/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
159.248.128.64
Broadcast Address
159.248.128.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
159.248.128.65
Last Usable IP
159.248.128.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (159.248.128.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 159.248.128.95 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 159.248.128.64/27
Network Address 159.248.128.64
Broadcast Address 159.248.128.95
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 159.248.128.65
Last Usable IP 159.248.128.94
Network (Hex) 0x9FF88040
Broadcast (Hex) 0x9FF8805F
Address Type Public / Globally Routable

Binary Representation

Network Address
10011111.11111000.10000000 10011111.11111000.10000000.01000000
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
159.248.128.64/28 159.248.128.64 159.248.128.79 159.248.128.65 159.248.128.78 14
159.248.128.80/28 159.248.128.80 159.248.128.95 159.248.128.81 159.248.128.94 14

IP Address Sample

Showing first 16 of 32 total IPs.

159.248.128.64 net
159.248.128.65
159.248.128.66
159.248.128.67
159.248.128.68
159.248.128.69
159.248.128.70
159.248.128.71
159.248.128.72
159.248.128.73
159.248.128.74
159.248.128.75
159.248.128.76
159.248.128.77
159.248.128.78
159.248.128.79
… 16 more IPs …

/27 Subnet Reference

Total IPs 32
Usable Hosts 30
Subnet Mask 255.255.255.224
Wildcard 0.0.0.31

Calculate Another