30.22.64.0/25

Public

Class A — /25 prefix — 126 usable hosts

Network Address
30.22.64.0
Broadcast Address
30.22.64.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
30.22.64.1
Last Usable IP
30.22.64.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (30.22.64.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 30.22.64.127 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 30.22.64.0/25
Network Address 30.22.64.0
Broadcast Address 30.22.64.127
Subnet Mask 255.255.255.128
Wildcard Mask 0.0.0.127
Prefix Length /25
IP Address Class Class A
Total IP Addresses 128
Usable Host Addresses 126
First Usable IP 30.22.64.1
Last Usable IP 30.22.64.126
Network (Hex) 0x1E164000
Broadcast (Hex) 0x1E16407F
Address Type Public / Globally Routable

Binary Representation

Network Address
00011110.00010110.01000000 00011110.00010110.01000000.00000000
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 30.22.64.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 30.22.64.0/26 30.22.64.0 30.22.64.1 30.22.64.62 30.22.64.63 62
2 30.22.64.64/26 30.22.64.64 30.22.64.65 30.22.64.126 30.22.64.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

30.22.64.0 net
30.22.64.1
30.22.64.2
30.22.64.3
30.22.64.4
30.22.64.5
30.22.64.6
30.22.64.7
30.22.64.8
30.22.64.9
30.22.64.10
30.22.64.11
30.22.64.12
30.22.64.13
30.22.64.14
30.22.64.15
… 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