161.193.143.128/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
161.193.143.128
Broadcast Address
161.193.143.159
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
161.193.143.129
Last Usable IP
161.193.143.158
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (161.193.143.128). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 161.193.143.159 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 161.193.143.128/27
Network Address 161.193.143.128
Broadcast Address 161.193.143.159
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 161.193.143.129
Last Usable IP 161.193.143.158
Network (Hex) 0xA1C18F80
Broadcast (Hex) 0xA1C18F9F
Address Type Public / Globally Routable

Binary Representation

Network Address
10100001.11000001.10001111 10100001.11000001.10001111.10000000
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 161.193.143.128/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 161.193.143.128/28 161.193.143.128 161.193.143.129 161.193.143.142 161.193.143.143 14
2 161.193.143.144/28 161.193.143.144 161.193.143.145 161.193.143.158 161.193.143.159 14

IP Address Sample

Showing first 16 of 32 total IPs.

161.193.143.128 net
161.193.143.129
161.193.143.130
161.193.143.131
161.193.143.132
161.193.143.133
161.193.143.134
161.193.143.135
161.193.143.136
161.193.143.137
161.193.143.138
161.193.143.139
161.193.143.140
161.193.143.141
161.193.143.142
161.193.143.143
… 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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