IPRangeExplorer

151.8.17.64/26

Public

Class B — /26 prefix — 62 usable hosts

Network Address
151.8.17.64
Broadcast Address
151.8.17.127
Subnet Mask
255.255.255.192
Usable Hosts
62
First Usable IP
151.8.17.65
Last Usable IP
151.8.17.126
Total IPs
64
Prefix Length
/26

Network address — the base address of the block (151.8.17.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 151.8.17.127 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 mask — 255.255.255.192 is the dotted-decimal equivalent of /26. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation 151.8.17.64/26
Network Address 151.8.17.64
Broadcast Address 151.8.17.127
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 151.8.17.65
Last Usable IP 151.8.17.126
Network (Hex) 0x97081140
Broadcast (Hex) 0x9708117F
Address Type Public / Globally Routable

Binary Representation

Network Address
10010111.00001000.00010001 10010111.00001000.00010001.01000000
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 151.8.17.64/26 into 2 equal /27 subnets (30 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 151.8.17.64/27 151.8.17.64 151.8.17.65 151.8.17.94 151.8.17.95 30
2 151.8.17.96/27 151.8.17.96 151.8.17.97 151.8.17.126 151.8.17.127 30

IP Address Sample

Showing first 16 of 64 total IPs.

151.8.17.64 net
151.8.17.65
151.8.17.66
151.8.17.67
151.8.17.68
151.8.17.69
151.8.17.70
151.8.17.71
151.8.17.72
151.8.17.73
151.8.17.74
151.8.17.75
151.8.17.76
151.8.17.77
151.8.17.78
151.8.17.79
… 48 more IPs …

/26 Subnet Reference

Total IPs 64
Usable Hosts 62
Subnet Mask 255.255.255.192
Wildcard 0.0.0.63
Full /26 reference →

Related Ranges

Parent /25 block 151.8.17.0/25 Sibling /26 block 151.8.17.0/26

Adjacent Prefix Sizes

/24 254 hosts /25 126 hosts /26 62 hosts /27 30 hosts /28 14 hosts

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