31.219.122.0/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
31.219.122.0
Broadcast Address
31.219.122.31
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
31.219.122.1
Last Usable IP
31.219.122.30
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (31.219.122.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 31.219.122.31 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 31.219.122.0/27
Network Address 31.219.122.0
Broadcast Address 31.219.122.31
Subnet Mask 255.255.255.224
Wildcard Mask 0.0.0.31
Prefix Length /27
IP Address Class Class A
Total IP Addresses 32
Usable Host Addresses 30
First Usable IP 31.219.122.1
Last Usable IP 31.219.122.30
Network (Hex) 0x1FDB7A00
Broadcast (Hex) 0x1FDB7A1F
Address Type Public / Globally Routable

Binary Representation

Network Address
00011111.11011011.01111010 00011111.11011011.01111010.00000000
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 31.219.122.0/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 31.219.122.0/28 31.219.122.0 31.219.122.1 31.219.122.14 31.219.122.15 14
2 31.219.122.16/28 31.219.122.16 31.219.122.17 31.219.122.30 31.219.122.31 14

IP Address Sample

Showing first 16 of 32 total IPs.

31.219.122.0 net
31.219.122.1
31.219.122.2
31.219.122.3
31.219.122.4
31.219.122.5
31.219.122.6
31.219.122.7
31.219.122.8
31.219.122.9
31.219.122.10
31.219.122.11
31.219.122.12
31.219.122.13
31.219.122.14
31.219.122.15
… 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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