78.212.154.0/25

Public

Class A — /25 prefix — 126 usable hosts

Network Address
78.212.154.0
Broadcast Address
78.212.154.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
78.212.154.1
Last Usable IP
78.212.154.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (78.212.154.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 78.212.154.127 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 78.212.154.0/25
Network Address 78.212.154.0
Broadcast Address 78.212.154.127
Subnet Mask 255.255.255.128
Wildcard Mask 0.0.0.127
Prefix Length /25
IP Address Class Class A
Total IP Addresses 128
Usable Host Addresses 126
First Usable IP 78.212.154.1
Last Usable IP 78.212.154.126
Network (Hex) 0x4ED49A00
Broadcast (Hex) 0x4ED49A7F
Address Type Public / Globally Routable

Binary Representation

Network Address
01001110.11010100.10011010 01001110.11010100.10011010.00000000
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 78.212.154.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 78.212.154.0/26 78.212.154.0 78.212.154.1 78.212.154.62 78.212.154.63 62
2 78.212.154.64/26 78.212.154.64 78.212.154.65 78.212.154.126 78.212.154.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

78.212.154.0 net
78.212.154.1
78.212.154.2
78.212.154.3
78.212.154.4
78.212.154.5
78.212.154.6
78.212.154.7
78.212.154.8
78.212.154.9
78.212.154.10
78.212.154.11
78.212.154.12
78.212.154.13
78.212.154.14
78.212.154.15
… 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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