192.252.17.0/25

Public

Class C — /25 prefix — 126 usable hosts

Network Address
192.252.17.0
Broadcast Address
192.252.17.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
192.252.17.1
Last Usable IP
192.252.17.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (192.252.17.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 192.252.17.127 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 192.252.17.0/25
Network Address 192.252.17.0
Broadcast Address 192.252.17.127
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 192.252.17.1
Last Usable IP 192.252.17.126
Network (Hex) 0xC0FC1100
Broadcast (Hex) 0xC0FC117F
Address Type Public / Globally Routable

Binary Representation

Network Address
11000000.11111100.00010001 11000000.11111100.00010001.00000000
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 192.252.17.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 192.252.17.0/26 192.252.17.0 192.252.17.1 192.252.17.62 192.252.17.63 62
2 192.252.17.64/26 192.252.17.64 192.252.17.65 192.252.17.126 192.252.17.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

192.252.17.0 net
192.252.17.1
192.252.17.2
192.252.17.3
192.252.17.4
192.252.17.5
192.252.17.6
192.252.17.7
192.252.17.8
192.252.17.9
192.252.17.10
192.252.17.11
192.252.17.12
192.252.17.13
192.252.17.14
192.252.17.15
… 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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