146.148.12.0/25

Public

Class B — /25 prefix — 126 usable hosts

Network Address
146.148.12.0
Broadcast Address
146.148.12.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
146.148.12.1
Last Usable IP
146.148.12.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (146.148.12.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 146.148.12.127 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 146.148.12.0/25
Network Address 146.148.12.0
Broadcast Address 146.148.12.127
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 146.148.12.1
Last Usable IP 146.148.12.126
Network (Hex) 0x92940C00
Broadcast (Hex) 0x92940C7F
Address Type Public / Globally Routable

Binary Representation

Network Address
10010010.10010100.00001100 10010010.10010100.00001100.00000000
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 146.148.12.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 146.148.12.0/26 146.148.12.0 146.148.12.1 146.148.12.62 146.148.12.63 62
2 146.148.12.64/26 146.148.12.64 146.148.12.65 146.148.12.126 146.148.12.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

146.148.12.0 net
146.148.12.1
146.148.12.2
146.148.12.3
146.148.12.4
146.148.12.5
146.148.12.6
146.148.12.7
146.148.12.8
146.148.12.9
146.148.12.10
146.148.12.11
146.148.12.12
146.148.12.13
146.148.12.14
146.148.12.15
… 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