202.42.87.64/27

Public

Class C — /27 prefix — 30 usable hosts

Network Address
202.42.87.64
Broadcast Address
202.42.87.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
202.42.87.65
Last Usable IP
202.42.87.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (202.42.87.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 202.42.87.95 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 202.42.87.64/27
Network Address 202.42.87.64
Broadcast Address 202.42.87.95
Subnet Mask 255.255.255.224
Wildcard Mask 0.0.0.31
Prefix Length /27
IP Address Class Class C
Total IP Addresses 32
Usable Host Addresses 30
First Usable IP 202.42.87.65
Last Usable IP 202.42.87.94
Network (Hex) 0xCA2A5740
Broadcast (Hex) 0xCA2A575F
Address Type Public / Globally Routable

Binary Representation

Network Address
11001010.00101010.01010111 11001010.00101010.01010111.01000000
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 202.42.87.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 202.42.87.64/28 202.42.87.64 202.42.87.65 202.42.87.78 202.42.87.79 14
2 202.42.87.80/28 202.42.87.80 202.42.87.81 202.42.87.94 202.42.87.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

202.42.87.64 net
202.42.87.65
202.42.87.66
202.42.87.67
202.42.87.68
202.42.87.69
202.42.87.70
202.42.87.71
202.42.87.72
202.42.87.73
202.42.87.74
202.42.87.75
202.42.87.76
202.42.87.77
202.42.87.78
202.42.87.79
… 16 more IPs …

/27 Subnet Reference

Total IPs 32
Usable Hosts 30
Subnet Mask 255.255.255.224
Wildcard 0.0.0.31

Calculate Another