177.209.7.0/25

Public

Class B — /25 prefix — 126 usable hosts

Network Address
177.209.7.0
Broadcast Address
177.209.7.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
177.209.7.1
Last Usable IP
177.209.7.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (177.209.7.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 177.209.7.127 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 177.209.7.0/25
Network Address 177.209.7.0
Broadcast Address 177.209.7.127
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 177.209.7.1
Last Usable IP 177.209.7.126
Network (Hex) 0xB1D10700
Broadcast (Hex) 0xB1D1077F
Address Type Public / Globally Routable

Binary Representation

Network Address
10110001.11010001.00000111 10110001.11010001.00000111.00000000
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 177.209.7.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 177.209.7.0/26 177.209.7.0 177.209.7.1 177.209.7.62 177.209.7.63 62
2 177.209.7.64/26 177.209.7.64 177.209.7.65 177.209.7.126 177.209.7.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

177.209.7.0 net
177.209.7.1
177.209.7.2
177.209.7.3
177.209.7.4
177.209.7.5
177.209.7.6
177.209.7.7
177.209.7.8
177.209.7.9
177.209.7.10
177.209.7.11
177.209.7.12
177.209.7.13
177.209.7.14
177.209.7.15
… 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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