177.255.133.0/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
177.255.133.0
Broadcast Address
177.255.133.31
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
177.255.133.1
Last Usable IP
177.255.133.30
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (177.255.133.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 177.255.133.31 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 177.255.133.0/27
Network Address 177.255.133.0
Broadcast Address 177.255.133.31
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 177.255.133.1
Last Usable IP 177.255.133.30
Network (Hex) 0xB1FF8500
Broadcast (Hex) 0xB1FF851F
Address Type Public / Globally Routable

Binary Representation

Network Address
10110001.11111111.10000101 10110001.11111111.10000101.00000000
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 177.255.133.0/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 177.255.133.0/28 177.255.133.0 177.255.133.1 177.255.133.14 177.255.133.15 14
2 177.255.133.16/28 177.255.133.16 177.255.133.17 177.255.133.30 177.255.133.31 14

IP Address Sample

Showing first 16 of 32 total IPs.

177.255.133.0 net
177.255.133.1
177.255.133.2
177.255.133.3
177.255.133.4
177.255.133.5
177.255.133.6
177.255.133.7
177.255.133.8
177.255.133.9
177.255.133.10
177.255.133.11
177.255.133.12
177.255.133.13
177.255.133.14
177.255.133.15
… 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