30.86.147.0/25

Public

Class A — /25 prefix — 126 usable hosts

Network Address
30.86.147.0
Broadcast Address
30.86.147.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
30.86.147.1
Last Usable IP
30.86.147.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (30.86.147.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 30.86.147.127 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 30.86.147.0/25
Network Address 30.86.147.0
Broadcast Address 30.86.147.127
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 30.86.147.1
Last Usable IP 30.86.147.126
Network (Hex) 0x1E569300
Broadcast (Hex) 0x1E56937F
Address Type Public / Globally Routable

Binary Representation

Network Address
00011110.01010110.10010011 00011110.01010110.10010011.00000000
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 30.86.147.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 30.86.147.0/26 30.86.147.0 30.86.147.1 30.86.147.62 30.86.147.63 62
2 30.86.147.64/26 30.86.147.64 30.86.147.65 30.86.147.126 30.86.147.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

30.86.147.0 net
30.86.147.1
30.86.147.2
30.86.147.3
30.86.147.4
30.86.147.5
30.86.147.6
30.86.147.7
30.86.147.8
30.86.147.9
30.86.147.10
30.86.147.11
30.86.147.12
30.86.147.13
30.86.147.14
30.86.147.15
… 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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