Network Range Calculator

Enter any IP + CIDR or subnet mask → get complete network range instantly

IP Address + CIDR

32-bit Binary Representation

192.168.10.32

Network Address

192.168.10.63

Broadcast Address

First Usable IP

192.168.10.33

Last Usable IP

192.168.10.62

Total Hosts

Usable Hosts

Subnet Mask

255.255.255.224

Wildcard Mask

0.0.0.31

CIDR Notation

/27

Host Bits

5 bits

Network Range Calculator – Complete CIDR & Subnet Analysis Tool

Instantly calculate the full network range from any IPv4 address and CIDR notation or subnet mask. Get network address, broadcast address, first/last usable IPs, total hosts, usable hosts, wildcard mask, and visual binary breakdown — everything you need for subnetting, firewall rules, VLAN planning, and network documentation.

Why Network Engineers Trust This Tool

Real-time Calculation

Real-Time Results

Updates instantly as you type — no submit button needed after first use.

Visual Binary

Visual Binary View

See network/host bits highlighted in real time.

Firewall Ready

Firewall & ACL Ready

Copy wildcard masks directly into Cisco, Palo Alto, Fortinet, etc.

Exam Perfect

CCNA/CCNP Approved

Master subnetting with accurate, exam-style calculations.

How the Network Range Calculator Works

Enter IP + CIDR

Type any valid IPv4 address with CIDR (e.g., 10.10.10.0/24) or use subnet mask.

Instant Analysis

Tool calculates network address using bitwise AND with subnet mask.

Get Full Range

See first/last usable IPs, broadcast, host count, and more.

Frequently Asked Questions

What is the difference between Total Hosts and Usable Hosts?

Total Hosts = 2^(32-CIDR). Usable Hosts = Total - 2 (network and broadcast addresses are reserved).

Why can't I use the network and broadcast addresses?

Network address (all host bits 0) identifies the network itself. Broadcast (all host bits 1) is used to send data to all devices in the subnet. They cannot be assigned to hosts.

When should I use wildcard mask?

Wildcard masks are used in Cisco ACLs (access control lists). They are the inverse of subnet masks (e.g., 0.0.0.255 for /24).

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