63.252.243.0/25

Public

Class A — /25 prefix — 126 usable hosts

Network Address
63.252.243.0
Broadcast Address
63.252.243.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
63.252.243.1
Last Usable IP
63.252.243.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (63.252.243.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 63.252.243.127 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 63.252.243.0/25
Network Address 63.252.243.0
Broadcast Address 63.252.243.127
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 63.252.243.1
Last Usable IP 63.252.243.126
Network (Hex) 0x3FFCF300
Broadcast (Hex) 0x3FFCF37F
Address Type Public / Globally Routable

Binary Representation

Network Address
00111111.11111100.11110011 00111111.11111100.11110011.00000000
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 63.252.243.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 63.252.243.0/26 63.252.243.0 63.252.243.1 63.252.243.62 63.252.243.63 62
2 63.252.243.64/26 63.252.243.64 63.252.243.65 63.252.243.126 63.252.243.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

63.252.243.0 net
63.252.243.1
63.252.243.2
63.252.243.3
63.252.243.4
63.252.243.5
63.252.243.6
63.252.243.7
63.252.243.8
63.252.243.9
63.252.243.10
63.252.243.11
63.252.243.12
63.252.243.13
63.252.243.14
63.252.243.15
… 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