IPRangeExplorer

70.0.30.0/25

Public

Class A — /25 prefix — 126 usable hosts

Network Address
70.0.30.0
Broadcast Address
70.0.30.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
70.0.30.1
Last Usable IP
70.0.30.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (70.0.30.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 70.0.30.127 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 70.0.30.0/25
Network Address 70.0.30.0
Broadcast Address 70.0.30.127
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 70.0.30.1
Last Usable IP 70.0.30.126
Network (Hex) 0x46001E00
Broadcast (Hex) 0x46001E7F
Address Type Public / Globally Routable

Binary Representation

Network Address
01000110.00000000.00011110 01000110.00000000.00011110.00000000
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 70.0.30.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 70.0.30.0/26 70.0.30.0 70.0.30.1 70.0.30.62 70.0.30.63 62
2 70.0.30.64/26 70.0.30.64 70.0.30.65 70.0.30.126 70.0.30.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

70.0.30.0 net
70.0.30.1
70.0.30.2
70.0.30.3
70.0.30.4
70.0.30.5
70.0.30.6
70.0.30.7
70.0.30.8
70.0.30.9
70.0.30.10
70.0.30.11
70.0.30.12
70.0.30.13
70.0.30.14
70.0.30.15
… 112 more IPs …

/25 Subnet Reference

Total IPs 128
Usable Hosts 126
Subnet Mask 255.255.255.128
Wildcard 0.0.0.127
Full /25 reference →

Related Ranges

Parent /24 block 70.0.30.0/24 Sibling /25 block 70.0.30.128/25

Adjacent Prefix Sizes

/23 510 hosts /24 254 hosts /25 126 hosts /26 62 hosts /27 30 hosts

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