222.148.181.0/25

Public

Class C — /25 prefix — 126 usable hosts

Network Address
222.148.181.0
Broadcast Address
222.148.181.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
222.148.181.1
Last Usable IP
222.148.181.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (222.148.181.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 222.148.181.127 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 222.148.181.0/25
Network Address 222.148.181.0
Broadcast Address 222.148.181.127
Subnet Mask 255.255.255.128
Wildcard Mask 0.0.0.127
Prefix Length /25
IP Address Class Class C
Total IP Addresses 128
Usable Host Addresses 126
First Usable IP 222.148.181.1
Last Usable IP 222.148.181.126
Network (Hex) 0xDE94B500
Broadcast (Hex) 0xDE94B57F
Address Type Public / Globally Routable

Binary Representation

Network Address
11011110.10010100.10110101 11011110.10010100.10110101.00000000
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 222.148.181.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 222.148.181.0/26 222.148.181.0 222.148.181.1 222.148.181.62 222.148.181.63 62
2 222.148.181.64/26 222.148.181.64 222.148.181.65 222.148.181.126 222.148.181.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

222.148.181.0 net
222.148.181.1
222.148.181.2
222.148.181.3
222.148.181.4
222.148.181.5
222.148.181.6
222.148.181.7
222.148.181.8
222.148.181.9
222.148.181.10
222.148.181.11
222.148.181.12
222.148.181.13
222.148.181.14
222.148.181.15
… 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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