178.199.64.0/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
178.199.64.0
Broadcast Address
178.199.64.31
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
178.199.64.1
Last Usable IP
178.199.64.30
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (178.199.64.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 178.199.64.31 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 178.199.64.0/27
Network Address 178.199.64.0
Broadcast Address 178.199.64.31
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 178.199.64.1
Last Usable IP 178.199.64.30
Network (Hex) 0xB2C74000
Broadcast (Hex) 0xB2C7401F
Address Type Public / Globally Routable

Binary Representation

Network Address
10110010.11000111.01000000 10110010.11000111.01000000.00000000
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 178.199.64.0/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 178.199.64.0/28 178.199.64.0 178.199.64.1 178.199.64.14 178.199.64.15 14
2 178.199.64.16/28 178.199.64.16 178.199.64.17 178.199.64.30 178.199.64.31 14

IP Address Sample

Showing first 16 of 32 total IPs.

178.199.64.0 net
178.199.64.1
178.199.64.2
178.199.64.3
178.199.64.4
178.199.64.5
178.199.64.6
178.199.64.7
178.199.64.8
178.199.64.9
178.199.64.10
178.199.64.11
178.199.64.12
178.199.64.13
178.199.64.14
178.199.64.15
… 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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