31.75.47.0/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
31.75.47.0
Broadcast Address
31.75.47.31
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
31.75.47.1
Last Usable IP
31.75.47.30
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (31.75.47.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 31.75.47.31 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 31.75.47.0/27
Network Address 31.75.47.0
Broadcast Address 31.75.47.31
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 31.75.47.1
Last Usable IP 31.75.47.30
Network (Hex) 0x1F4B2F00
Broadcast (Hex) 0x1F4B2F1F
Address Type Public / Globally Routable

Binary Representation

Network Address
00011111.01001011.00101111 00011111.01001011.00101111.00000000
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 31.75.47.0/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 31.75.47.0/28 31.75.47.0 31.75.47.1 31.75.47.14 31.75.47.15 14
2 31.75.47.16/28 31.75.47.16 31.75.47.17 31.75.47.30 31.75.47.31 14

IP Address Sample

Showing first 16 of 32 total IPs.

31.75.47.0 net
31.75.47.1
31.75.47.2
31.75.47.3
31.75.47.4
31.75.47.5
31.75.47.6
31.75.47.7
31.75.47.8
31.75.47.9
31.75.47.10
31.75.47.11
31.75.47.12
31.75.47.13
31.75.47.14
31.75.47.15
… 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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