251.75.237.0/27

Public

Class E (Reserved) — /27 prefix — 30 usable hosts

Network Address
251.75.237.0
Broadcast Address
251.75.237.31
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
251.75.237.1
Last Usable IP
251.75.237.30
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (251.75.237.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 251.75.237.31 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 251.75.237.0/27
Network Address 251.75.237.0
Broadcast Address 251.75.237.31
Subnet Mask 255.255.255.224
Wildcard Mask 0.0.0.31
Prefix Length /27
IP Address Class Class E (Reserved)
Total IP Addresses 32
Usable Host Addresses 30
First Usable IP 251.75.237.1
Last Usable IP 251.75.237.30
Network (Hex) 0xFB4BED00
Broadcast (Hex) 0xFB4BED1F
Address Type Public / Globally Routable

Binary Representation

Network Address
11111011.01001011.11101101 11111011.01001011.11101101.00000000
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 251.75.237.0/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 251.75.237.0/28 251.75.237.0 251.75.237.1 251.75.237.14 251.75.237.15 14
2 251.75.237.16/28 251.75.237.16 251.75.237.17 251.75.237.30 251.75.237.31 14

IP Address Sample

Showing first 16 of 32 total IPs.

251.75.237.0 net
251.75.237.1
251.75.237.2
251.75.237.3
251.75.237.4
251.75.237.5
251.75.237.6
251.75.237.7
251.75.237.8
251.75.237.9
251.75.237.10
251.75.237.11
251.75.237.12
251.75.237.13
251.75.237.14
251.75.237.15
… 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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