63.75.10.0/25

Public

Class A — /25 prefix — 126 usable hosts

Network Address
63.75.10.0
Broadcast Address
63.75.10.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
63.75.10.1
Last Usable IP
63.75.10.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (63.75.10.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 63.75.10.127 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 mask — 255.255.255.128 is the dotted-decimal equivalent of /25. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation 63.75.10.0/25
Network Address 63.75.10.0
Broadcast Address 63.75.10.127
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 63.75.10.1
Last Usable IP 63.75.10.126
Network (Hex) 0x3F4B0A00
Broadcast (Hex) 0x3F4B0A7F
Address Type Public / Globally Routable

Binary Representation

Network Address
00111111.01001011.00001010 00111111.01001011.00001010.00000000
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 63.75.10.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 63.75.10.0/26 63.75.10.0 63.75.10.1 63.75.10.62 63.75.10.63 62
2 63.75.10.64/26 63.75.10.64 63.75.10.65 63.75.10.126 63.75.10.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

63.75.10.0 net
63.75.10.1
63.75.10.2
63.75.10.3
63.75.10.4
63.75.10.5
63.75.10.6
63.75.10.7
63.75.10.8
63.75.10.9
63.75.10.10
63.75.10.11
63.75.10.12
63.75.10.13
63.75.10.14
63.75.10.15
… 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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