192.172.30.64/26

Public

Class C — /26 prefix — 62 usable hosts

Network Address
192.172.30.64
Broadcast Address
192.172.30.127
Subnet Mask
255.255.255.192
Usable Hosts
62
First Usable IP
192.172.30.65
Last Usable IP
192.172.30.126
Total IPs
64
Prefix Length
/26

Network address — the base address of the block (192.172.30.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 192.172.30.127 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 192.172.30.64/26
Network Address 192.172.30.64
Broadcast Address 192.172.30.127
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 192.172.30.65
Last Usable IP 192.172.30.126
Network (Hex) 0xC0AC1E40
Broadcast (Hex) 0xC0AC1E7F
Address Type Public / Globally Routable

Binary Representation

Network Address
11000000.10101100.00011110 11000000.10101100.00011110.01000000
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 192.172.30.64/26 into 2 equal /27 subnets (30 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 192.172.30.64/27 192.172.30.64 192.172.30.65 192.172.30.94 192.172.30.95 30
2 192.172.30.96/27 192.172.30.96 192.172.30.97 192.172.30.126 192.172.30.127 30

IP Address Sample

Showing first 16 of 64 total IPs.

192.172.30.64 net
192.172.30.65
192.172.30.66
192.172.30.67
192.172.30.68
192.172.30.69
192.172.30.70
192.172.30.71
192.172.30.72
192.172.30.73
192.172.30.74
192.172.30.75
192.172.30.76
192.172.30.77
192.172.30.78
192.172.30.79
… 48 more IPs …

/26 Subnet Reference

Total IPs 64
Usable Hosts 62
Subnet Mask 255.255.255.192
Wildcard 0.0.0.63

Calculate Another