149.252.77.0/25

Public

Class B — /25 prefix — 126 usable hosts

Network Address
149.252.77.0
Broadcast Address
149.252.77.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
149.252.77.1
Last Usable IP
149.252.77.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (149.252.77.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 149.252.77.127 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 mask — 255.255.255.128 is the dotted-decimal equivalent of /25. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation 149.252.77.0/25
Network Address 149.252.77.0
Broadcast Address 149.252.77.127
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 149.252.77.1
Last Usable IP 149.252.77.126
Network (Hex) 0x95FC4D00
Broadcast (Hex) 0x95FC4D7F
Address Type Public / Globally Routable

Binary Representation

Network Address
10010101.11111100.01001101 10010101.11111100.01001101.00000000
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 149.252.77.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 149.252.77.0/26 149.252.77.0 149.252.77.1 149.252.77.62 149.252.77.63 62
2 149.252.77.64/26 149.252.77.64 149.252.77.65 149.252.77.126 149.252.77.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

149.252.77.0 net
149.252.77.1
149.252.77.2
149.252.77.3
149.252.77.4
149.252.77.5
149.252.77.6
149.252.77.7
149.252.77.8
149.252.77.9
149.252.77.10
149.252.77.11
149.252.77.12
149.252.77.13
149.252.77.14
149.252.77.15
… 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