42.237.9.0/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
42.237.9.0
Broadcast Address
42.237.9.31
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
42.237.9.1
Last Usable IP
42.237.9.30
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (42.237.9.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 42.237.9.31 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 42.237.9.0/27
Network Address 42.237.9.0
Broadcast Address 42.237.9.31
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 42.237.9.1
Last Usable IP 42.237.9.30
Network (Hex) 0x2AED0900
Broadcast (Hex) 0x2AED091F
Address Type Public / Globally Routable

Binary Representation

Network Address
00101010.11101101.00001001 00101010.11101101.00001001.00000000
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 42.237.9.0/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 42.237.9.0/28 42.237.9.0 42.237.9.1 42.237.9.14 42.237.9.15 14
2 42.237.9.16/28 42.237.9.16 42.237.9.17 42.237.9.30 42.237.9.31 14

IP Address Sample

Showing first 16 of 32 total IPs.

42.237.9.0 net
42.237.9.1
42.237.9.2
42.237.9.3
42.237.9.4
42.237.9.5
42.237.9.6
42.237.9.7
42.237.9.8
42.237.9.9
42.237.9.10
42.237.9.11
42.237.9.12
42.237.9.13
42.237.9.14
42.237.9.15
… 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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