172.39.6.64/26

Public

Class B — /26 prefix — 62 usable hosts

Network Address
172.39.6.64
Broadcast Address
172.39.6.127
Subnet Mask
255.255.255.192
Usable Hosts
62
First Usable IP
172.39.6.65
Last Usable IP
172.39.6.126
Total IPs
64
Prefix Length
/26

Network address — the base address of the block (172.39.6.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 172.39.6.127 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 172.39.6.64/26
Network Address 172.39.6.64
Broadcast Address 172.39.6.127
Subnet Mask 255.255.255.192
Wildcard Mask 0.0.0.63
Prefix Length /26
IP Address Class Class B
Total IP Addresses 64
Usable Host Addresses 62
First Usable IP 172.39.6.65
Last Usable IP 172.39.6.126
Network (Hex) 0xAC270640
Broadcast (Hex) 0xAC27067F
Address Type Public / Globally Routable

Binary Representation

Network Address
10101100.00100111.00000110 10101100.00100111.00000110.01000000
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 172.39.6.64/26 into 2 equal /27 subnets (30 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 172.39.6.64/27 172.39.6.64 172.39.6.65 172.39.6.94 172.39.6.95 30
2 172.39.6.96/27 172.39.6.96 172.39.6.97 172.39.6.126 172.39.6.127 30

IP Address Sample

Showing first 16 of 64 total IPs.

172.39.6.64 net
172.39.6.65
172.39.6.66
172.39.6.67
172.39.6.68
172.39.6.69
172.39.6.70
172.39.6.71
172.39.6.72
172.39.6.73
172.39.6.74
172.39.6.75
172.39.6.76
172.39.6.77
172.39.6.78
172.39.6.79
… 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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