239.252.72.64/26

Multicast RFC 5771

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

Network Address
239.252.72.64
Broadcast Address
239.252.72.127
Subnet Mask
255.255.255.192
Usable Hosts
62
First Usable IP
239.252.72.65
Last Usable IP
239.252.72.126
Total IPs
64
Prefix Length
/26

Network address — the base address of the block (239.252.72.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 239.252.72.127 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 239.252.72.64/26
Network Address 239.252.72.64
Broadcast Address 239.252.72.127
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 239.252.72.65
Last Usable IP 239.252.72.126
Network (Hex) 0xEFFC4840
Broadcast (Hex) 0xEFFC487F
Governing RFC RFC 5771
Address Type Multicast

Binary Representation

Network Address
11101111.11111100.01001000 11101111.11111100.01001000.01000000
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.

Subnet Breakdown — splitting into /27

This /26 block can be divided into 2 /27 subnets.

CIDR Network Broadcast First Usable Last Usable Hosts
239.252.72.64/27 239.252.72.64 239.252.72.95 239.252.72.65 239.252.72.94 30
239.252.72.96/27 239.252.72.96 239.252.72.127 239.252.72.97 239.252.72.126 30

IP Address Sample

Showing first 16 of 64 total IPs.

239.252.72.64 net
239.252.72.65
239.252.72.66
239.252.72.67
239.252.72.68
239.252.72.69
239.252.72.70
239.252.72.71
239.252.72.72
239.252.72.73
239.252.72.74
239.252.72.75
239.252.72.76
239.252.72.77
239.252.72.78
239.252.72.79
… 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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