# ssid blog
> Field notes on MAC addresses, device identification, and what's really on your network.
## Posts
- [Unknown device on my network: how to identify it fast](https://ssid.ai/blog/unknown-device-on-my-network/): Found an unknown device on your WiFi? Identify it from its MAC address, IP, and hostname — and know what to do when the MAC is randomized.
- [How to log into your router at 192.168.1.1 or 192.168.0.1](https://ssid.ai/blog/router-admin-login-192-168-1-1/): To open your router settings, type 192.168.1.1 or 192.168.0.1 into a browser and sign in. Here is how to find the right address and password.
- [How to find what device a MAC address belongs to](https://ssid.ai/blog/identify-device-from-mac-address/): A MAC address's first half is the manufacturer (OUI). Here's how to look up the vendor, narrow down the device, and why the answer is sometimes 'private'.
- [Private WiFi Address: why your phone hides its MAC](https://ssid.ai/blog/private-wifi-address-explained/): iPhones and Android phones use a private, randomized WiFi address by default. What that means, why it exists, and how it changes what you see on your network.
- [Why a MAC address shows blank, zero, or 'unknown'](https://ssid.ai/blog/mac-address-blank-or-unknown/): A blank, all-zero, or 'unknown' MAC address usually means randomization, a virtual interface, or a lookup gap. How to tell which — and what to do.
## About
- [ssid](https://ssid.ai)