100.84.87.0/26

Public

Class A — /26 prefix — 62 usable hosts

Network Address
100.84.87.0
Broadcast Address
100.84.87.63
Subnet Mask
255.255.255.192
Usable Hosts
62
First Usable IP
100.84.87.1
Last Usable IP
100.84.87.62
Total IPs
64
Prefix Length
/26

Network address — the base address of the block (100.84.87.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 100.84.87.63 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 100.84.87.0/26
Network Address 100.84.87.0
Broadcast Address 100.84.87.63
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 100.84.87.1
Last Usable IP 100.84.87.62
Network (Hex) 0x64545700
Broadcast (Hex) 0x6454573F
Address Type Public / Globally Routable

Binary Representation

Network Address
01100100.01010100.01010111 01100100.01010100.01010111.00000000
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 100.84.87.0/26 into 2 equal /27 subnets (30 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 100.84.87.0/27 100.84.87.0 100.84.87.1 100.84.87.30 100.84.87.31 30
2 100.84.87.32/27 100.84.87.32 100.84.87.33 100.84.87.62 100.84.87.63 30

IP Address Sample

Showing first 16 of 64 total IPs.

100.84.87.0 net
100.84.87.1
100.84.87.2
100.84.87.3
100.84.87.4
100.84.87.5
100.84.87.6
100.84.87.7
100.84.87.8
100.84.87.9
100.84.87.10
100.84.87.11
100.84.87.12
100.84.87.13
100.84.87.14
100.84.87.15
… 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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