212.237.80.0/25

Public

Class C — /25 prefix — 126 usable hosts

Network Address
212.237.80.0
Broadcast Address
212.237.80.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
212.237.80.1
Last Usable IP
212.237.80.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (212.237.80.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 212.237.80.127 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 212.237.80.0/25
Network Address 212.237.80.0
Broadcast Address 212.237.80.127
Subnet Mask 255.255.255.128
Wildcard Mask 0.0.0.127
Prefix Length /25
IP Address Class Class C
Total IP Addresses 128
Usable Host Addresses 126
First Usable IP 212.237.80.1
Last Usable IP 212.237.80.126
Network (Hex) 0xD4ED5000
Broadcast (Hex) 0xD4ED507F
Address Type Public / Globally Routable

Binary Representation

Network Address
11010100.11101101.01010000 11010100.11101101.01010000.00000000
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 212.237.80.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 212.237.80.0/26 212.237.80.0 212.237.80.1 212.237.80.62 212.237.80.63 62
2 212.237.80.64/26 212.237.80.64 212.237.80.65 212.237.80.126 212.237.80.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

212.237.80.0 net
212.237.80.1
212.237.80.2
212.237.80.3
212.237.80.4
212.237.80.5
212.237.80.6
212.237.80.7
212.237.80.8
212.237.80.9
212.237.80.10
212.237.80.11
212.237.80.12
212.237.80.13
212.237.80.14
212.237.80.15
… 112 more IPs …

/25 Subnet Reference

Total IPs 128
Usable Hosts 126
Subnet Mask 255.255.255.128
Wildcard 0.0.0.127

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