104.53.12.0/25

Public

Class A — /25 prefix — 126 usable hosts

Network Address
104.53.12.0
Broadcast Address
104.53.12.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
104.53.12.1
Last Usable IP
104.53.12.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (104.53.12.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 104.53.12.127 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 104.53.12.0/25
Network Address 104.53.12.0
Broadcast Address 104.53.12.127
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 104.53.12.1
Last Usable IP 104.53.12.126
Network (Hex) 0x68350C00
Broadcast (Hex) 0x68350C7F
Address Type Public / Globally Routable

Binary Representation

Network Address
01101000.00110101.00001100 01101000.00110101.00001100.00000000
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 104.53.12.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 104.53.12.0/26 104.53.12.0 104.53.12.1 104.53.12.62 104.53.12.63 62
2 104.53.12.64/26 104.53.12.64 104.53.12.65 104.53.12.126 104.53.12.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

104.53.12.0 net
104.53.12.1
104.53.12.2
104.53.12.3
104.53.12.4
104.53.12.5
104.53.12.6
104.53.12.7
104.53.12.8
104.53.12.9
104.53.12.10
104.53.12.11
104.53.12.12
104.53.12.13
104.53.12.14
104.53.12.15
… 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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