227.237.48.0/25

Multicast RFC 5771

Class D (Multicast) — /25 prefix — 126 usable hosts

Network Address
227.237.48.0
Broadcast Address
227.237.48.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
227.237.48.1
Last Usable IP
227.237.48.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (227.237.48.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 227.237.48.127 are delivered to every device in the subnet. Also reserved — not assignable.

Usable hosts — the 126 addresses between those two that you can assign to servers, VMs, or interfaces.

Subnet mask255.255.255.128 is the dotted-decimal equivalent of /25. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation 227.237.48.0/25
Network Address 227.237.48.0
Broadcast Address 227.237.48.127
Subnet Mask 255.255.255.128
Wildcard Mask 0.0.0.127
Prefix Length /25
IP Address Class Class D (Multicast)
Total IP Addresses 128
Usable Host Addresses 126
First Usable IP 227.237.48.1
Last Usable IP 227.237.48.126
Network (Hex) 0xE3ED3000
Broadcast (Hex) 0xE3ED307F
Governing RFC RFC 5771
Address Type Multicast

Binary Representation

Network Address
11100011.11101101.00110000 11100011.11101101.00110000.00000000
Subnet Mask
11111111.11111111.11111111.10000000

The first 25 bits (1s in the mask) identify the network. The remaining 7 bits identify hosts within the network.

Split into Equal Subnets

Split 227.237.48.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 227.237.48.0/26 227.237.48.0 227.237.48.1 227.237.48.62 227.237.48.63 62
2 227.237.48.64/26 227.237.48.64 227.237.48.65 227.237.48.126 227.237.48.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

227.237.48.0 net
227.237.48.1
227.237.48.2
227.237.48.3
227.237.48.4
227.237.48.5
227.237.48.6
227.237.48.7
227.237.48.8
227.237.48.9
227.237.48.10
227.237.48.11
227.237.48.12
227.237.48.13
227.237.48.14
227.237.48.15
… 112 more IPs …

/25 Subnet Reference

Total IPs 128
Usable Hosts 126
Subnet Mask 255.255.255.128
Wildcard 0.0.0.127

Calculate Another