38.2.4.128/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
38.2.4.128
Broadcast Address
38.2.4.159
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
38.2.4.129
Last Usable IP
38.2.4.158
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (38.2.4.128). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 38.2.4.159 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 38.2.4.128/27
Network Address 38.2.4.128
Broadcast Address 38.2.4.159
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 38.2.4.129
Last Usable IP 38.2.4.158
Network (Hex) 0x26020480
Broadcast (Hex) 0x2602049F
Address Type Public / Globally Routable

Binary Representation

Network Address
00100110.00000010.00000100 00100110.00000010.00000100.10000000
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 38.2.4.128/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 38.2.4.128/28 38.2.4.128 38.2.4.129 38.2.4.142 38.2.4.143 14
2 38.2.4.144/28 38.2.4.144 38.2.4.145 38.2.4.158 38.2.4.159 14

IP Address Sample

Showing first 16 of 32 total IPs.

38.2.4.128 net
38.2.4.129
38.2.4.130
38.2.4.131
38.2.4.132
38.2.4.133
38.2.4.134
38.2.4.135
38.2.4.136
38.2.4.137
38.2.4.138
38.2.4.139
38.2.4.140
38.2.4.141
38.2.4.142
38.2.4.143
… 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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