3.151.2.0/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
3.151.2.0
Broadcast Address
3.151.2.31
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
3.151.2.1
Last Usable IP
3.151.2.30
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (3.151.2.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 3.151.2.31 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 3.151.2.0/27
Network Address 3.151.2.0
Broadcast Address 3.151.2.31
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 3.151.2.1
Last Usable IP 3.151.2.30
Network (Hex) 0x03970200
Broadcast (Hex) 0x0397021F
Address Type Public / Globally Routable

Binary Representation

Network Address
00000011.10010111.00000010 00000011.10010111.00000010.00000000
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 3.151.2.0/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 3.151.2.0/28 3.151.2.0 3.151.2.1 3.151.2.14 3.151.2.15 14
2 3.151.2.16/28 3.151.2.16 3.151.2.17 3.151.2.30 3.151.2.31 14

IP Address Sample

Showing first 16 of 32 total IPs.

3.151.2.0 net
3.151.2.1
3.151.2.2
3.151.2.3
3.151.2.4
3.151.2.5
3.151.2.6
3.151.2.7
3.151.2.8
3.151.2.9
3.151.2.10
3.151.2.11
3.151.2.12
3.151.2.13
3.151.2.14
3.151.2.15
… 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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