230.166.77.128/26

Multicast RFC 5771

Class D (Multicast) — /26 prefix — 62 usable hosts

Network Address
230.166.77.128
Broadcast Address
230.166.77.191
Subnet Mask
255.255.255.192
Usable Hosts
62
First Usable IP
230.166.77.129
Last Usable IP
230.166.77.190
Total IPs
64
Prefix Length
/26

Network address — the base address of the block (230.166.77.128). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 230.166.77.191 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 230.166.77.128/26
Network Address 230.166.77.128
Broadcast Address 230.166.77.191
Subnet Mask 255.255.255.192
Wildcard Mask 0.0.0.63
Prefix Length /26
IP Address Class Class D (Multicast)
Total IP Addresses 64
Usable Host Addresses 62
First Usable IP 230.166.77.129
Last Usable IP 230.166.77.190
Network (Hex) 0xE6A64D80
Broadcast (Hex) 0xE6A64DBF
Governing RFC RFC 5771
Address Type Multicast

Binary Representation

Network Address
11100110.10100110.01001101 11100110.10100110.01001101.10000000
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 230.166.77.128/26 into 2 equal /27 subnets (30 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 230.166.77.128/27 230.166.77.128 230.166.77.129 230.166.77.158 230.166.77.159 30
2 230.166.77.160/27 230.166.77.160 230.166.77.161 230.166.77.190 230.166.77.191 30

IP Address Sample

Showing first 16 of 64 total IPs.

230.166.77.128 net
230.166.77.129
230.166.77.130
230.166.77.131
230.166.77.132
230.166.77.133
230.166.77.134
230.166.77.135
230.166.77.136
230.166.77.137
230.166.77.138
230.166.77.139
230.166.77.140
230.166.77.141
230.166.77.142
230.166.77.143
… 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