85.252.100.0/25

Public

Class A — /25 prefix — 126 usable hosts

Network Address
85.252.100.0
Broadcast Address
85.252.100.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
85.252.100.1
Last Usable IP
85.252.100.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (85.252.100.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 85.252.100.127 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 85.252.100.0/25
Network Address 85.252.100.0
Broadcast Address 85.252.100.127
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 85.252.100.1
Last Usable IP 85.252.100.126
Network (Hex) 0x55FC6400
Broadcast (Hex) 0x55FC647F
Address Type Public / Globally Routable

Binary Representation

Network Address
01010101.11111100.01100100 01010101.11111100.01100100.00000000
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 85.252.100.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 85.252.100.0/26 85.252.100.0 85.252.100.1 85.252.100.62 85.252.100.63 62
2 85.252.100.64/26 85.252.100.64 85.252.100.65 85.252.100.126 85.252.100.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

85.252.100.0 net
85.252.100.1
85.252.100.2
85.252.100.3
85.252.100.4
85.252.100.5
85.252.100.6
85.252.100.7
85.252.100.8
85.252.100.9
85.252.100.10
85.252.100.11
85.252.100.12
85.252.100.13
85.252.100.14
85.252.100.15
… 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