IPRangeExplorer

15.128.36.64/26

Public

Class A — /26 prefix — 62 usable hosts

Network Address
15.128.36.64
Broadcast Address
15.128.36.127
Subnet Mask
255.255.255.192
Usable Hosts
62
First Usable IP
15.128.36.65
Last Usable IP
15.128.36.126
Total IPs
64
Prefix Length
/26

Network address — the base address of the block (15.128.36.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 15.128.36.127 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 15.128.36.64/26
Network Address 15.128.36.64
Broadcast Address 15.128.36.127
Subnet Mask 255.255.255.192
Wildcard Mask 0.0.0.63
Prefix Length /26
IP Address Class Class A
Total IP Addresses 64
Usable Host Addresses 62
First Usable IP 15.128.36.65
Last Usable IP 15.128.36.126
Network (Hex) 0x0F802440
Broadcast (Hex) 0x0F80247F
Address Type Public / Globally Routable

Binary Representation

Network Address
00001111.10000000.00100100 00001111.10000000.00100100.01000000
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 15.128.36.64/26 into 2 equal /27 subnets (30 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 15.128.36.64/27 15.128.36.64 15.128.36.65 15.128.36.94 15.128.36.95 30
2 15.128.36.96/27 15.128.36.96 15.128.36.97 15.128.36.126 15.128.36.127 30

IP Address Sample

Showing first 16 of 64 total IPs.

15.128.36.64 net
15.128.36.65
15.128.36.66
15.128.36.67
15.128.36.68
15.128.36.69
15.128.36.70
15.128.36.71
15.128.36.72
15.128.36.73
15.128.36.74
15.128.36.75
15.128.36.76
15.128.36.77
15.128.36.78
15.128.36.79
… 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 15.128.36.0/25 Sibling /26 block 15.128.36.0/26

Adjacent Prefix Sizes

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

Calculate Another