187.149.33.0/25

Public

Class B — /25 prefix — 126 usable hosts

Network Address
187.149.33.0
Broadcast Address
187.149.33.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
187.149.33.1
Last Usable IP
187.149.33.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (187.149.33.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 187.149.33.127 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 187.149.33.0/25
Network Address 187.149.33.0
Broadcast Address 187.149.33.127
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 187.149.33.1
Last Usable IP 187.149.33.126
Network (Hex) 0xBB952100
Broadcast (Hex) 0xBB95217F
Address Type Public / Globally Routable

Binary Representation

Network Address
10111011.10010101.00100001 10111011.10010101.00100001.00000000
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 187.149.33.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 187.149.33.0/26 187.149.33.0 187.149.33.1 187.149.33.62 187.149.33.63 62
2 187.149.33.64/26 187.149.33.64 187.149.33.65 187.149.33.126 187.149.33.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

187.149.33.0 net
187.149.33.1
187.149.33.2
187.149.33.3
187.149.33.4
187.149.33.5
187.149.33.6
187.149.33.7
187.149.33.8
187.149.33.9
187.149.33.10
187.149.33.11
187.149.33.12
187.149.33.13
187.149.33.14
187.149.33.15
… 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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