18.252.135.64/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
18.252.135.64
Broadcast Address
18.252.135.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
18.252.135.65
Last Usable IP
18.252.135.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (18.252.135.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 18.252.135.95 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 18.252.135.64/27
Network Address 18.252.135.64
Broadcast Address 18.252.135.95
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 18.252.135.65
Last Usable IP 18.252.135.94
Network (Hex) 0x12FC8740
Broadcast (Hex) 0x12FC875F
Address Type Public / Globally Routable

Binary Representation

Network Address
00010010.11111100.10000111 00010010.11111100.10000111.01000000
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 18.252.135.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 18.252.135.64/28 18.252.135.64 18.252.135.65 18.252.135.78 18.252.135.79 14
2 18.252.135.80/28 18.252.135.80 18.252.135.81 18.252.135.94 18.252.135.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

18.252.135.64 net
18.252.135.65
18.252.135.66
18.252.135.67
18.252.135.68
18.252.135.69
18.252.135.70
18.252.135.71
18.252.135.72
18.252.135.73
18.252.135.74
18.252.135.75
18.252.135.76
18.252.135.77
18.252.135.78
18.252.135.79
… 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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