177.220.154.0/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
177.220.154.0
Broadcast Address
177.220.154.31
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
177.220.154.1
Last Usable IP
177.220.154.30
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (177.220.154.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 177.220.154.31 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 177.220.154.0/27
Network Address 177.220.154.0
Broadcast Address 177.220.154.31
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 177.220.154.1
Last Usable IP 177.220.154.30
Network (Hex) 0xB1DC9A00
Broadcast (Hex) 0xB1DC9A1F
Address Type Public / Globally Routable

Binary Representation

Network Address
10110001.11011100.10011010 10110001.11011100.10011010.00000000
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 177.220.154.0/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 177.220.154.0/28 177.220.154.0 177.220.154.1 177.220.154.14 177.220.154.15 14
2 177.220.154.16/28 177.220.154.16 177.220.154.17 177.220.154.30 177.220.154.31 14

IP Address Sample

Showing first 16 of 32 total IPs.

177.220.154.0 net
177.220.154.1
177.220.154.2
177.220.154.3
177.220.154.4
177.220.154.5
177.220.154.6
177.220.154.7
177.220.154.8
177.220.154.9
177.220.154.10
177.220.154.11
177.220.154.12
177.220.154.13
177.220.154.14
177.220.154.15
… 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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