IPRangeExplorer

16.18.102.64/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
16.18.102.64
Broadcast Address
16.18.102.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
16.18.102.65
Last Usable IP
16.18.102.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (16.18.102.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 16.18.102.95 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 mask — 255.255.255.224 is the dotted-decimal equivalent of /27. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation 16.18.102.64/27
Network Address 16.18.102.64
Broadcast Address 16.18.102.95
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 16.18.102.65
Last Usable IP 16.18.102.94
Network (Hex) 0x10126640
Broadcast (Hex) 0x1012665F
Address Type Public / Globally Routable

Binary Representation

Network Address
00010000.00010010.01100110 00010000.00010010.01100110.01000000
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 16.18.102.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 16.18.102.64/28 16.18.102.64 16.18.102.65 16.18.102.78 16.18.102.79 14
2 16.18.102.80/28 16.18.102.80 16.18.102.81 16.18.102.94 16.18.102.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

16.18.102.64 net
16.18.102.65
16.18.102.66
16.18.102.67
16.18.102.68
16.18.102.69
16.18.102.70
16.18.102.71
16.18.102.72
16.18.102.73
16.18.102.74
16.18.102.75
16.18.102.76
16.18.102.77
16.18.102.78
16.18.102.79
… 16 more IPs …

/27 Subnet Reference

Total IPs 32
Usable Hosts 30
Subnet Mask 255.255.255.224
Wildcard 0.0.0.31
Full /27 reference →

Related Ranges

Parent /26 block 16.18.102.64/26 Sibling /27 block 16.18.102.96/27

Adjacent Prefix Sizes

/25 126 hosts /26 62 hosts /27 30 hosts /28 14 hosts /29 6 hosts

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