51.146.237.64/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
51.146.237.64
Broadcast Address
51.146.237.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
51.146.237.65
Last Usable IP
51.146.237.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (51.146.237.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 51.146.237.95 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 51.146.237.64/27
Network Address 51.146.237.64
Broadcast Address 51.146.237.95
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 51.146.237.65
Last Usable IP 51.146.237.94
Network (Hex) 0x3392ED40
Broadcast (Hex) 0x3392ED5F
Address Type Public / Globally Routable

Binary Representation

Network Address
00110011.10010010.11101101 00110011.10010010.11101101.01000000
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 51.146.237.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 51.146.237.64/28 51.146.237.64 51.146.237.65 51.146.237.78 51.146.237.79 14
2 51.146.237.80/28 51.146.237.80 51.146.237.81 51.146.237.94 51.146.237.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

51.146.237.64 net
51.146.237.65
51.146.237.66
51.146.237.67
51.146.237.68
51.146.237.69
51.146.237.70
51.146.237.71
51.146.237.72
51.146.237.73
51.146.237.74
51.146.237.75
51.146.237.76
51.146.237.77
51.146.237.78
51.146.237.79
… 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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