158.252.73.0/25

Public

Class B — /25 prefix — 126 usable hosts

Network Address
158.252.73.0
Broadcast Address
158.252.73.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
158.252.73.1
Last Usable IP
158.252.73.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (158.252.73.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 158.252.73.127 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 158.252.73.0/25
Network Address 158.252.73.0
Broadcast Address 158.252.73.127
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 158.252.73.1
Last Usable IP 158.252.73.126
Network (Hex) 0x9EFC4900
Broadcast (Hex) 0x9EFC497F
Address Type Public / Globally Routable

Binary Representation

Network Address
10011110.11111100.01001001 10011110.11111100.01001001.00000000
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 158.252.73.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 158.252.73.0/26 158.252.73.0 158.252.73.1 158.252.73.62 158.252.73.63 62
2 158.252.73.64/26 158.252.73.64 158.252.73.65 158.252.73.126 158.252.73.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

158.252.73.0 net
158.252.73.1
158.252.73.2
158.252.73.3
158.252.73.4
158.252.73.5
158.252.73.6
158.252.73.7
158.252.73.8
158.252.73.9
158.252.73.10
158.252.73.11
158.252.73.12
158.252.73.13
158.252.73.14
158.252.73.15
… 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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