99.86.173.0/25

Public

Class A — /25 prefix — 126 usable hosts

Network Address
99.86.173.0
Broadcast Address
99.86.173.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
99.86.173.1
Last Usable IP
99.86.173.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (99.86.173.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 99.86.173.127 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 99.86.173.0/25
Network Address 99.86.173.0
Broadcast Address 99.86.173.127
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 99.86.173.1
Last Usable IP 99.86.173.126
Network (Hex) 0x6356AD00
Broadcast (Hex) 0x6356AD7F
Address Type Public / Globally Routable

Binary Representation

Network Address
01100011.01010110.10101101 01100011.01010110.10101101.00000000
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 99.86.173.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 99.86.173.0/26 99.86.173.0 99.86.173.1 99.86.173.62 99.86.173.63 62
2 99.86.173.64/26 99.86.173.64 99.86.173.65 99.86.173.126 99.86.173.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

99.86.173.0 net
99.86.173.1
99.86.173.2
99.86.173.3
99.86.173.4
99.86.173.5
99.86.173.6
99.86.173.7
99.86.173.8
99.86.173.9
99.86.173.10
99.86.173.11
99.86.173.12
99.86.173.13
99.86.173.14
99.86.173.15
… 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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