177.253.40.0/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
177.253.40.0
Broadcast Address
177.253.40.31
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
177.253.40.1
Last Usable IP
177.253.40.30
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (177.253.40.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 177.253.40.31 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 177.253.40.0/27
Network Address 177.253.40.0
Broadcast Address 177.253.40.31
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 177.253.40.1
Last Usable IP 177.253.40.30
Network (Hex) 0xB1FD2800
Broadcast (Hex) 0xB1FD281F
Address Type Public / Globally Routable

Binary Representation

Network Address
10110001.11111101.00101000 10110001.11111101.00101000.00000000
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 177.253.40.0/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 177.253.40.0/28 177.253.40.0 177.253.40.1 177.253.40.14 177.253.40.15 14
2 177.253.40.16/28 177.253.40.16 177.253.40.17 177.253.40.30 177.253.40.31 14

IP Address Sample

Showing first 16 of 32 total IPs.

177.253.40.0 net
177.253.40.1
177.253.40.2
177.253.40.3
177.253.40.4
177.253.40.5
177.253.40.6
177.253.40.7
177.253.40.8
177.253.40.9
177.253.40.10
177.253.40.11
177.253.40.12
177.253.40.13
177.253.40.14
177.253.40.15
… 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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