30.75.144.64/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
30.75.144.64
Broadcast Address
30.75.144.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
30.75.144.65
Last Usable IP
30.75.144.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (30.75.144.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 30.75.144.95 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 30.75.144.64/27
Network Address 30.75.144.64
Broadcast Address 30.75.144.95
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 30.75.144.65
Last Usable IP 30.75.144.94
Network (Hex) 0x1E4B9040
Broadcast (Hex) 0x1E4B905F
Address Type Public / Globally Routable

Binary Representation

Network Address
00011110.01001011.10010000 00011110.01001011.10010000.01000000
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 30.75.144.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 30.75.144.64/28 30.75.144.64 30.75.144.65 30.75.144.78 30.75.144.79 14
2 30.75.144.80/28 30.75.144.80 30.75.144.81 30.75.144.94 30.75.144.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

30.75.144.64 net
30.75.144.65
30.75.144.66
30.75.144.67
30.75.144.68
30.75.144.69
30.75.144.70
30.75.144.71
30.75.144.72
30.75.144.73
30.75.144.74
30.75.144.75
30.75.144.76
30.75.144.77
30.75.144.78
30.75.144.79
… 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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