166.252.192.0/25

Public

Class B — /25 prefix — 126 usable hosts

Network Address
166.252.192.0
Broadcast Address
166.252.192.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
166.252.192.1
Last Usable IP
166.252.192.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (166.252.192.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 166.252.192.127 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 166.252.192.0/25
Network Address 166.252.192.0
Broadcast Address 166.252.192.127
Subnet Mask 255.255.255.128
Wildcard Mask 0.0.0.127
Prefix Length /25
IP Address Class Class B
Total IP Addresses 128
Usable Host Addresses 126
First Usable IP 166.252.192.1
Last Usable IP 166.252.192.126
Network (Hex) 0xA6FCC000
Broadcast (Hex) 0xA6FCC07F
Address Type Public / Globally Routable

Binary Representation

Network Address
10100110.11111100.11000000 10100110.11111100.11000000.00000000
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 166.252.192.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 166.252.192.0/26 166.252.192.0 166.252.192.1 166.252.192.62 166.252.192.63 62
2 166.252.192.64/26 166.252.192.64 166.252.192.65 166.252.192.126 166.252.192.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

166.252.192.0 net
166.252.192.1
166.252.192.2
166.252.192.3
166.252.192.4
166.252.192.5
166.252.192.6
166.252.192.7
166.252.192.8
166.252.192.9
166.252.192.10
166.252.192.11
166.252.192.12
166.252.192.13
166.252.192.14
166.252.192.15
… 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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