199.9.186.0/25

Public

Class C — /25 prefix — 126 usable hosts

Network Address
199.9.186.0
Broadcast Address
199.9.186.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
199.9.186.1
Last Usable IP
199.9.186.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (199.9.186.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 199.9.186.127 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 199.9.186.0/25
Network Address 199.9.186.0
Broadcast Address 199.9.186.127
Subnet Mask 255.255.255.128
Wildcard Mask 0.0.0.127
Prefix Length /25
IP Address Class Class C
Total IP Addresses 128
Usable Host Addresses 126
First Usable IP 199.9.186.1
Last Usable IP 199.9.186.126
Network (Hex) 0xC709BA00
Broadcast (Hex) 0xC709BA7F
Address Type Public / Globally Routable

Binary Representation

Network Address
11000111.00001001.10111010 11000111.00001001.10111010.00000000
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 199.9.186.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 199.9.186.0/26 199.9.186.0 199.9.186.1 199.9.186.62 199.9.186.63 62
2 199.9.186.64/26 199.9.186.64 199.9.186.65 199.9.186.126 199.9.186.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

199.9.186.0 net
199.9.186.1
199.9.186.2
199.9.186.3
199.9.186.4
199.9.186.5
199.9.186.6
199.9.186.7
199.9.186.8
199.9.186.9
199.9.186.10
199.9.186.11
199.9.186.12
199.9.186.13
199.9.186.14
199.9.186.15
… 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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