154.252.70.0/25

Public

Class B — /25 prefix — 126 usable hosts

Network Address
154.252.70.0
Broadcast Address
154.252.70.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
154.252.70.1
Last Usable IP
154.252.70.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (154.252.70.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 154.252.70.127 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 154.252.70.0/25
Network Address 154.252.70.0
Broadcast Address 154.252.70.127
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 154.252.70.1
Last Usable IP 154.252.70.126
Network (Hex) 0x9AFC4600
Broadcast (Hex) 0x9AFC467F
Address Type Public / Globally Routable

Binary Representation

Network Address
10011010.11111100.01000110 10011010.11111100.01000110.00000000
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 154.252.70.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 154.252.70.0/26 154.252.70.0 154.252.70.1 154.252.70.62 154.252.70.63 62
2 154.252.70.64/26 154.252.70.64 154.252.70.65 154.252.70.126 154.252.70.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

154.252.70.0 net
154.252.70.1
154.252.70.2
154.252.70.3
154.252.70.4
154.252.70.5
154.252.70.6
154.252.70.7
154.252.70.8
154.252.70.9
154.252.70.10
154.252.70.11
154.252.70.12
154.252.70.13
154.252.70.14
154.252.70.15
… 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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