166.91.252.0/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
166.91.252.0
Broadcast Address
166.91.252.31
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
166.91.252.1
Last Usable IP
166.91.252.30
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (166.91.252.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 166.91.252.31 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 166.91.252.0/27
Network Address 166.91.252.0
Broadcast Address 166.91.252.31
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 166.91.252.1
Last Usable IP 166.91.252.30
Network (Hex) 0xA65BFC00
Broadcast (Hex) 0xA65BFC1F
Address Type Public / Globally Routable

Binary Representation

Network Address
10100110.01011011.11111100 10100110.01011011.11111100.00000000
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 166.91.252.0/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 166.91.252.0/28 166.91.252.0 166.91.252.1 166.91.252.14 166.91.252.15 14
2 166.91.252.16/28 166.91.252.16 166.91.252.17 166.91.252.30 166.91.252.31 14

IP Address Sample

Showing first 16 of 32 total IPs.

166.91.252.0 net
166.91.252.1
166.91.252.2
166.91.252.3
166.91.252.4
166.91.252.5
166.91.252.6
166.91.252.7
166.91.252.8
166.91.252.9
166.91.252.10
166.91.252.11
166.91.252.12
166.91.252.13
166.91.252.14
166.91.252.15
… 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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