Practical Android networking

How to Find the IP Address of a Device on Your Network

Scan the local subnet, identify the device by name, vendor, or behavior, and confirm the address before using it in another tool.

Quick steps

1. Connect to the same LAN as the device.
2. Run an IP or network scan for the current subnet.
3. Match results using a known host name, vendor, or MAC address.
4. Confirm by opening the device service or temporarily disconnecting it and rescanning.

What the result means

The tool walks through addresses in the selected local range and records responses available to the phone. A positive result shows reachability during the scan; a missing response does not prove that an address is unused.

The IP scanner checks addresses in a local IPv4 range and highlights hosts that respond. It is practical when you know the subnet but not the current address of a device.

Troubleshooting

Repeat the test from the same network and preserve one variable at a time. Check basic reachability first, then move to the protocol-specific test. A single timeout is not enough to identify the failing component.

• DHCP addresses can change after reconnecting.
• Vendor names identify the adapter maker, not always the product brand.
• Devices on guest WiFi or another VLAN may be invisible.

Common mistakes

• Testing a device on another guest network or VLAN without a route.
• Assuming one scan is a permanent inventory rather than a point-in-time observation.
• Changing several router or device settings before retesting each change.

Use Network Toolkit

Open IP Scanner for Android for the detailed workflow, limitations, and related tools. Use diagnostics only on systems you own or administer.

Frequently asked questions