203.242.65.64/26

Public

Class C — /26 prefix — 62 usable hosts

Network Address
203.242.65.64
Broadcast Address
203.242.65.127
Subnet Mask
255.255.255.192
Usable Hosts
62
First Usable IP
203.242.65.65
Last Usable IP
203.242.65.126
Total IPs
64
Prefix Length
/26

Network address — the base address of the block (203.242.65.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 203.242.65.127 are delivered to every device in the subnet. Also reserved — not assignable.

Usable hosts — the 62 addresses between those two that you can assign to servers, VMs, or interfaces.

Subnet mask255.255.255.192 is the dotted-decimal equivalent of /26. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation 203.242.65.64/26
Network Address 203.242.65.64
Broadcast Address 203.242.65.127
Subnet Mask 255.255.255.192
Wildcard Mask 0.0.0.63
Prefix Length /26
IP Address Class Class C
Total IP Addresses 64
Usable Host Addresses 62
First Usable IP 203.242.65.65
Last Usable IP 203.242.65.126
Network (Hex) 0xCBF24140
Broadcast (Hex) 0xCBF2417F
Address Type Public / Globally Routable

Binary Representation

Network Address
11001011.11110010.01000001 11001011.11110010.01000001.01000000
Subnet Mask
11111111.11111111.11111111.11000000

The first 26 bits (1s in the mask) identify the network. The remaining 6 bits identify hosts within the network.

Split into Equal Subnets

Split 203.242.65.64/26 into 2 equal /27 subnets (30 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 203.242.65.64/27 203.242.65.64 203.242.65.65 203.242.65.94 203.242.65.95 30
2 203.242.65.96/27 203.242.65.96 203.242.65.97 203.242.65.126 203.242.65.127 30

IP Address Sample

Showing first 16 of 64 total IPs.

203.242.65.64 net
203.242.65.65
203.242.65.66
203.242.65.67
203.242.65.68
203.242.65.69
203.242.65.70
203.242.65.71
203.242.65.72
203.242.65.73
203.242.65.74
203.242.65.75
203.242.65.76
203.242.65.77
203.242.65.78
203.242.65.79
… 48 more IPs …

/26 Subnet Reference

Total IPs 64
Usable Hosts 62
Subnet Mask 255.255.255.192
Wildcard 0.0.0.63

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