30.78.33.0/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
30.78.33.0
Broadcast Address
30.78.33.31
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
30.78.33.1
Last Usable IP
30.78.33.30
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (30.78.33.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 30.78.33.31 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 30.78.33.0/27
Network Address 30.78.33.0
Broadcast Address 30.78.33.31
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 30.78.33.1
Last Usable IP 30.78.33.30
Network (Hex) 0x1E4E2100
Broadcast (Hex) 0x1E4E211F
Address Type Public / Globally Routable

Binary Representation

Network Address
00011110.01001110.00100001 00011110.01001110.00100001.00000000
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 30.78.33.0/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 30.78.33.0/28 30.78.33.0 30.78.33.1 30.78.33.14 30.78.33.15 14
2 30.78.33.16/28 30.78.33.16 30.78.33.17 30.78.33.30 30.78.33.31 14

IP Address Sample

Showing first 16 of 32 total IPs.

30.78.33.0 net
30.78.33.1
30.78.33.2
30.78.33.3
30.78.33.4
30.78.33.5
30.78.33.6
30.78.33.7
30.78.33.8
30.78.33.9
30.78.33.10
30.78.33.11
30.78.33.12
30.78.33.13
30.78.33.14
30.78.33.15
… 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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